Whole Grain Ricotta Mushroom Tart with Tomatoes by Gourmandelle Ingredients For the dough: 150g whole wheat flour 50g cold butter 1/4 glass of ice cold water sea salt For the filling: 2 cups sliced button mushrooms 2 eggs, beaten 1 cup ricotta cheese 1 onion, chopped a bunch of dill, chopped 2 tsps dry thyme …