Baked ziti doesn't have to be over-loaded with cheese to taste good! My recipe has a creamy sauce, thanks to the addition of fat-free ricotta, and lots of sautéed veggies.
Preheat oven to 350°F. Spray a 9 x 13 baking dish with cooking spray or oil mister.
Heat olive oil in a large skillet over medium heat. Add onion and cook until softened, about 4 minutes. Add zucchini and mushrooms and cook until softened and liquid has boiled off, about 7 minutes more. Remove from heat.
Add pasta, marinara sauce, ricotta, salt, and pepper to skillet with vegetables. Stir until well combined.
Pour pasta mixture into baking dish. Top with cheese. Bake for 30 minutes. Sprinkle with parsley before serving, if desired.
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