In a large skillet, bring the marinara sauce, mushrooms, olives, tomatoes, Italian seasoning and pepper flakes to a low boil. Simmer while cooking sausage. Heat 1 tablespoon olive oil over medium ...

This cheesy vegetarian stromboli, for example, is filled with a delicious mixture of mushrooms, walnuts, mozzarella, and cheddar. Recipe developer Annabelle Randles likes to serve this dish with a ...