Colorful bell peppers filled with herbed rice, sun-dried tomatoes, garlic, and melted cheese make an easy vegetarian dinner that feels much more substantial than the ingredient list might suggest.
The peppers become tender and lightly sweet in the oven while the filling stays savory and satisfying. Sun-dried tomatoes add concentrated tomato flavor, fresh herbs keep everything bright, and mozzarella melts through the rice and forms a golden layer over the top.
These stuffed peppers are also wonderfully adaptable. You can use brown rice, wild rice, quinoa, or another cooked grain, add beans for extra protein, change the herbs with the season, or swap the mozzarella for feta when you want a more Mediterranean flavor.
Serve them as a meatless main course with a salad or roasted vegetables, or make them as a colorful side dish for a larger meal.
🫑 Why Stuffed Bell Peppers Work So Well
Bell peppers are almost designed to be filled.
Their hollow interiors create natural edible containers for rice, grains, vegetables, cheese, meat, or legumes, and roasting transforms their initially crisp texture into something softer and sweeter.
Cutting the peppers in half lengthwise instead of leaving them whole has several advantages.
The halves are easier to fill, cook somewhat faster, and provide a larger surface for browned cheese.
They are also easier to serve because each half is already an individual portion.
For a vegetarian filling, rice provides substance while sun-dried tomatoes, herbs, garlic, and cheese supply enough flavor that the peppers do not feel like a side dish pretending to be dinner.
🛒 Ingredients
Serves 4 as a main course or 6 to 8 as a side
- 4 large bell peppers
- 2 cups cooked rice
- 1 tablespoon olive oil
- 1 small yellow onion, finely chopped
- 3 garlic cloves, minced
- 1/2 cup chopped sun-dried tomatoes
- 1/4 cup chopped fresh parsley
- 2 tablespoons chopped fresh basil
- 1 teaspoon dried oregano
- 1/2 teaspoon kosher salt
- 1/4 teaspoon freshly ground black pepper
- 1/4 teaspoon crushed red pepper flakes, optional
- 1 1/2 cups shredded mozzarella cheese, divided
- 1/4 cup finely grated Parmesan cheese
- 2 tablespoons water or vegetable broth for the baking dish
Optional Additions
- 1 cup cooked chickpeas or white beans
- 1 cup chopped baby spinach
- 1/2 cup crumbled feta
- 1/2 cup chopped mushrooms
- 1/4 cup toasted pine nuts
🌈 Which Bell Peppers Are Best?
You can use any color.
Red, orange, and yellow bell peppers are generally sweeter once roasted, while green peppers have a slightly sharper, more vegetal flavor.
Using several colors makes the finished baking dish especially attractive.
Choose peppers that feel firm and heavy for their size without wrinkled skin or soft areas.
Similar-size peppers are helpful because they will soften at roughly the same rate.
🍚 What Kind of Rice Should You Use?
Almost any cooked rice works.
Long-grain white rice gives you a light, fluffy filling.
Brown rice has a nuttier flavor and chewier texture.
Wild-rice blends can make the peppers feel more substantial and work particularly well during fall.
This is also a very good use for leftover rice.
Just make sure you have about two cups cooked rice, rather than measuring two cups of uncooked rice.
That distinction makes a very big difference.
🍚 Cool Leftover Rice Properly
If you are using leftover rice, make sure it was refrigerated promptly after cooking.
Cooked rice and other leftovers should not spend hours sitting at room temperature.
USDA recommends refrigerating perishable leftovers within two hours and keeping the refrigerator at 40°F or below.
For this recipe, cold leftover rice can go directly into the filling because everything will be thoroughly reheated in the oven.
☀️ Oil-Packed or Dry Sun-Dried Tomatoes?
Either can work, but oil-packed sun-dried tomatoes are particularly convenient.
Drain off the excess oil and chop the tomatoes into small pieces.
Their concentrated sweetness and acidity give the rice filling far more flavor than fresh tomatoes would provide without adding a great deal of moisture.
If you use completely dry sun-dried tomatoes, soften them first in hot water for about 10 minutes, drain them thoroughly, and chop them.
🔥 Preheat the Oven
Preheat the oven to 375°F.
Lightly oil a large baking dish.
A 9-by-13-inch casserole dish is usually large enough for eight bell-pepper halves.
Add about 2 tablespoons water or vegetable broth to the bottom of the dish.
The small amount of liquid creates a little steam while the peppers begin baking and helps them soften without making them soggy.
🔪 Prepare the Peppers
Cut each bell pepper in half lengthwise through the stem.
You can leave the stems attached for appearance if you like, but do not eat them.
Remove the seeds and pale interior membranes.
Arrange the pepper halves cut-side up in the prepared baking dish.
If one rocks badly, trim an extremely thin slice from the rounded bottom to stabilize it, taking care not to create a hole.
🫑 Give the Peppers a Head Start
Cover the baking dish loosely with foil.
Bake the empty pepper halves for about 10 to 12 minutes.
This short pre-bake is one of the most useful improvements you can make to stuffed peppers.
The filling is already largely cooked before it enters the oven, so if raw peppers and warm filling begin baking simultaneously, the filling may become hot and dry before thick pepper walls become tender.
The brief head start helps everything finish at the same time.
Remove the dish from the oven and set it aside while you prepare the filling.
🧅 Sauté the Onion
Heat the olive oil in a large skillet over medium heat.
Add the chopped onion and cook for approximately 4 to 5 minutes, until softened and beginning to turn translucent.
Cooking the onion before adding it to the peppers gives the filling better flavor and prevents crunchy raw onion pieces from surviving the relatively short final bake.
🧄 Add the Garlic and Seasonings
Add the minced garlic, oregano, and crushed red pepper flakes if using.
Cook for about 30 seconds, just until fragrant.
Garlic can burn quickly, so there is no reason to cook it for several minutes by itself.
The oregano and optional chile flakes bloom briefly in the warm oil, bringing their flavors into the filling.
🍅 Add the Sun-Dried Tomatoes
Stir the chopped sun-dried tomatoes into the skillet.
Cook for about one minute.
If you are adding mushrooms or chopped spinach, add them now.
Mushrooms should be cooked until they release most of their moisture.
Spinach only needs enough time to wilt.
Keeping excess liquid out of the filling helps prevent watery stuffed peppers later.
🍚 Add the Rice
Add the cooked rice and stir until thoroughly combined with the onion and tomato mixture.
Season with salt and black pepper.
If your sun-dried tomatoes or Parmesan are particularly salty, begin with a little less salt and adjust after tasting.
Cook only long enough to warm the rice slightly.
There is no need to fry it or make it crispy.
🌿 Add Fresh Herbs at the End
Remove the skillet from the heat.
Stir in the parsley and basil.
Adding tender fresh herbs after the skillet leaves the heat preserves more of their fresh flavor.
If you only have dried herbs, use approximately 1 teaspoon dried basil in place of the fresh basil and add it with the oregano earlier in the cooking process.
🧀 Add the Cheese
Stir 3/4 cup mozzarella and the Parmesan into the warm rice mixture.
The cheese will begin softening without completely melting.
Reserve the remaining mozzarella for the tops of the peppers.
This gives you cheese throughout the filling as well as the browned layer above it.
🫑 Fill the Peppers
Spoon the rice mixture generously into the partially baked pepper halves.
Fill them to the top without packing the rice down aggressively.
A loose filling heats more evenly and remains lighter.
If you have a little filling left over, save it for lunch or spoon it around the peppers in the baking dish.
🧀 Top with Mozzarella
Scatter the remaining mozzarella over the peppers.
Mozzarella works particularly well because it melts smoothly and develops golden spots in the oven.
The current recipe suggests feta as an interchangeable cheese, but feta behaves very differently.
It softens and browns somewhat but does not melt into a stretchy bubbling layer.
If you want feta, use it as a variation rather than expecting the same result.
🔥 Bake Until Tender
Return the stuffed peppers to the 375°F oven.
Bake uncovered for approximately 20 to 25 minutes.
The pepper should be tender enough to cut easily with a fork while still retaining its shape.
The filling should be piping hot and the mozzarella melted.
If you want deeper browning on the cheese, broil the peppers very briefly at the end.
Watch closely because cheese can go from golden to burnt quickly beneath a broiler.
🌿 Finish with Fresh Herbs
Let the peppers rest for approximately 5 minutes after baking.
Scatter additional parsley or basil over the top before serving.
That short rest makes them easier to handle and gives the filling a chance to settle.
For extra brightness, you can also squeeze a little fresh lemon juice over the finished peppers.
🍋 Add Lemon for a Mediterranean Flavor
A little lemon pairs beautifully with rice, parsley, sun-dried tomatoes, and cheese.
Add one teaspoon finely grated lemon zest to the filling or squeeze a small amount of juice over the cooked peppers.
If you are using feta instead of mozzarella, lemon becomes an especially natural addition.
The acidity also balances the sweetness that develops as the peppers roast.
🧀 Mozzarella vs. Feta
For a classic cheesy stuffed pepper, use mozzarella.
It melts into the rice and gives you the golden top people expect when they see a cheese-covered baked pepper.
For a Mediterranean variation, use about 1 cup crumbled feta instead.
Feta adds stronger saltiness and tang but will remain in soft crumbles rather than becoming stretchy.
You can also combine the two: mozzarella for melting and a small amount of feta for flavor.
🫘 Add Beans for More Protein
These peppers make a satisfying vegetarian meal as written, but beans make them even heartier.
Add about 1 cup drained and rinsed chickpeas, cannellini beans, or black beans to the rice.
Chickpeas work particularly well with the sun-dried tomatoes, parsley, oregano, and feta.
White beans blend almost invisibly into the Mediterranean-style filling.
Black beans move the recipe in a Southwestern direction, especially if you replace the basil and oregano with cumin and cilantro.
🌾 Use Quinoa Instead of Rice
Cooked quinoa makes an excellent substitute.
Use approximately 2 cups cooked quinoa in place of the rice.
Its slightly nutty flavor works nicely with roasted peppers and herbs.
Quinoa also makes the filling feel somewhat lighter while remaining substantial.
Your summer-vegetable roundup already features a quinoa-and-black-bean stuffed pepper variation, so this detailed page can easily serve as the main recipe while the roundup points readers here for technique.
🥬 Add Spinach
For extra greens, add about 1 cup chopped baby spinach to the onion mixture.
Cook until just wilted before adding the rice.
Spinach reduces dramatically as it cooks, so one cup will not overwhelm the filling.
It pairs particularly well with feta and sun-dried tomatoes.
🍄 Add Mushrooms
Finely chopped mushrooms make the filling deeper and more savory.
Add about 1 cup chopped cremini or button mushrooms after the onion.
Cook until their released moisture has mostly evaporated.
This is important because putting raw mushrooms directly into the stuffing can create excess liquid inside the peppers.
Mushrooms, wild rice, thyme, and Parmesan make an especially good cool-weather version.
🇮🇹 Italian-Style Stuffed Peppers
For an Italian-inspired variation, replace the sun-dried tomatoes with about 1 cup thick marinara sauce.
Use mozzarella and Parmesan for the cheese and add Italian seasoning or fresh basil.
The filling should remain moist but not soupy.
Serve with additional warm marinara spooned around the peppers.
🌮 Southwestern Stuffed Peppers
Replace the sun-dried tomato and herb profile with:
- Black beans
- Corn
- Cooked rice or quinoa
- Diced tomatoes
- Ground cumin
- Chile powder
- Cilantro
- Cheddar or Monterey Jack
Finish with avocado, salsa, or a spoonful of sour cream.
This version is quite different from the Mediterranean-style base recipe but uses exactly the same pepper-preparation technique.
🍚 Can You Use Cauliflower Rice?
Yes, but cook it first.
Raw cauliflower rice releases moisture during baking and can make the pepper filling watery.
Sauté it in a skillet until tender and much of its moisture has evaporated.
Then proceed with the herbs, sun-dried tomatoes, and cheese.
This produces a lighter filling while preserving the flavor profile.
🫑 Whole Peppers vs. Pepper Halves
Both methods work.
Whole upright peppers have the classic stuffed-pepper appearance and hold a larger volume of filling.
Halves cook faster, are easier to eat, and expose more filling and cheese to the oven.
Because the existing Pop & Thistle photo and recipe use pepper halves, I would keep that format.
It also makes the dish particularly convenient when the filling is vegetarian and already cooked.
😕 Why Are My Stuffed Peppers Still Crunchy?
They probably needed more time before stuffing.
Bell peppers are thick vegetables and can take longer to soften than an already-cooked rice filling needs to heat.
That is why this recipe partially bakes the empty pepper halves first.
If you prefer extremely soft peppers, extend that initial bake to about 15 minutes before filling them.
💦 Why Are My Stuffed Peppers Watery?
Several ingredients can release liquid.
Fresh mushrooms, spinach, tomatoes, and the peppers themselves all contain water.
Cook moisture-rich vegetables before adding them to the filling.
Drain sun-dried tomatoes if they are packed in oil, and avoid adding excessive sauce.
A small amount of moisture is normal and helps the peppers remain tender, but they should not be swimming in liquid.
🧱 Why Is the Filling Dry?
Rice continues absorbing moisture as it bakes.
If the filling seems dry before it even goes into the peppers, add a tablespoon or two of vegetable broth, marinara sauce, or olive oil.
Cheese also adds richness.
Covering the peppers for part of the baking time can reduce moisture loss, although with the initial pepper pre-bake and this relatively short final cooking time, it usually is not necessary.
🧂 Taste the Filling Before Stuffing
This is one advantage of a vegetarian filling made entirely from cooked ingredients.
Taste it before it goes into the peppers.
Rice requires enough seasoning to keep it from tasting flat, but sun-dried tomatoes, Parmesan, and cheese all contribute salt.
Adjusting the seasoning at the skillet stage is much easier than discovering after baking that the filling needed another pinch of salt.
🥗 What to Serve with Stuffed Bell Peppers
Two stuffed pepper halves can easily serve as a complete light dinner.
For a larger meal, add a crisp green salad.
Roasted butternut squash, roasted carrots, or another seasonal vegetable works well too.
Crusty bread is excellent if you add marinara sauce.
For a Mediterranean-style dinner, serve the peppers with cucumber salad, hummus, olives, or a simple lemony green salad.
🍲 Serve with Soup
A light soup and one stuffed pepper half make an excellent lunch.
Tomato soup works naturally with the rice and cheese filling.
A simple vegetable soup or your hearty vegetarian cabbage soup makes the meal more substantial without adding meat.
This combination works especially well during fall and winter.
⏰ Can You Make Stuffed Peppers Ahead?
Yes.
Prepare the filling and partially bake the pepper halves.
Let both cool.
Fill the peppers, arrange them in the baking dish, cover, and refrigerate.
I would assemble them up to one day ahead.
When ready to serve, add the cheese and bake.
Because the ingredients are starting cold, the peppers may need a few extra minutes in the oven.
🥡 How to Store Leftovers
Allow leftovers to cool promptly and transfer them to a covered container.
Refrigerate within two hours.
USDA recommends keeping most cooked leftovers in the refrigerator for 3 to 4 days.
Stuffed peppers are particularly good for meal prep because each pepper half is already an individual portion.
🔥 How to Reheat Stuffed Peppers
The oven gives the best texture.
Place the peppers in a baking dish and cover loosely with foil.
Warm at about 350°F until thoroughly hot.
Remove the foil for the final few minutes if you want the cheese to become bubbly again.
The microwave is faster and works well for individual portions, although the peppers will become softer.
USDA recommends reheating leftovers to 165°F.
❄️ Can You Freeze Stuffed Peppers?
Yes.
Cooked stuffed peppers freeze reasonably well, although the pepper itself will be softer after thawing.
Cool them completely and wrap individual portions or place them in freezer-safe containers.
For the best texture, thaw overnight in the refrigerator and reheat in the oven.
USDA notes that cooked leftovers can be frozen for longer storage, although food quality gradually declines over time.
🍽️ Great for Meal Prep
These peppers are particularly useful for preparing several lunches at once.
Bake a full batch and divide the halves among individual containers.
Add a green salad separately or pack another roasted vegetable alongside.
Because the rice and cheese filling is already portioned inside the pepper, very little work is required when lunchtime arrives.
🌿 A Flexible Vegetarian Dinner
The best thing about stuffed peppers may be how easily they adapt to what is already in the refrigerator.
Cooked rice can become quinoa.
Mozzarella can become feta.
Parsley and basil can shift toward cilantro and cumin.
Chickpeas, beans, mushrooms, spinach, corn, or another leftover vegetable can join the filling.
The pepper itself remains the same colorful edible container.
This version—with rice, sun-dried tomatoes, garlic, herbs, and cheese—is a good base because the flavors are simple enough to customize without becoming bland.
🫑 Vegetarian Stuffed Bell Pepper Recipe
Prep Time: 20 minutes
Cook Time: About 35 minutes
Total Time: About 55 minutes
Servings: 4
Ingredients
- 4 large bell peppers
- 2 cups cooked rice
- 1 tablespoon olive oil
- 1 small yellow onion, finely chopped
- 3 garlic cloves, minced
- 1/2 cup chopped sun-dried tomatoes
- 1/4 cup chopped fresh parsley
- 2 tablespoons chopped fresh basil
- 1 teaspoon dried oregano
- 1/2 teaspoon kosher salt
- 1/4 teaspoon black pepper
- Pinch of crushed red pepper flakes, optional
- 1 1/2 cups shredded mozzarella cheese, divided
- 1/4 cup grated Parmesan
- 2 tablespoons water or vegetable broth
Instructions
- Preheat the oven to 375°F.
- Lightly oil a 9-by-13-inch baking dish and add 2 tablespoons water or vegetable broth.
- Cut the bell peppers in half lengthwise and remove the seeds and membranes.
- Arrange the halves cut-side up in the baking dish.
- Cover loosely with foil and bake for 10 to 12 minutes.
- Meanwhile, heat the olive oil in a skillet over medium heat.
- Add the onion and cook for 4 to 5 minutes, until softened.
- Add the garlic, oregano, and red pepper flakes if using. Cook for 30 seconds.
- Stir in the sun-dried tomatoes and cook for about 1 minute.
- Add the cooked rice and stir until thoroughly combined.
- Season with salt and black pepper.
- Remove from the heat and stir in the parsley and basil.
- Stir in 3/4 cup mozzarella and the Parmesan.
- Remove the partially baked peppers from the oven.
- Fill each pepper half generously with the rice mixture.
- Sprinkle the remaining mozzarella over the tops.
- Return the peppers to the oven uncovered.
- Bake for 20 to 25 minutes, until the peppers are tender and the filling is hot.
- Broil briefly at the end if you want additional browning on the cheese.
- Let the peppers rest for about 5 minutes.
- Garnish with additional parsley or basil and serve.
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