All you need for this is:
-Can tomato sauce
-Can diced tomatoes
-Cheddar cheese
-Frozen Ravioli
-And any seasoning you like.
I almost always use:
-Garlic powder
-Onion powder
-Italian seasoning
-Salt and pepper
Just mix everything in a baking dish. Put oven to 350 and bake for 30-40 minutes, or until it's nice and bubbly and the cheese is melted.
Serve with some veggies and voila!