If you're looking for ways to decrease meat in your diet, this rotini bake is an excellent choice. It's a fuss-free combination of cooked spiral pasta, tomatoes, seasonings, and layers of mozzarella cheese. You won't miss the meat in this crowd-pleasing dish. Serve this simple pasta casserole as a side dish or make it a meatless entre for any night of the week. Add a tossed salad or caesar salad and some garlic bread to make it a full and satisfying meal.