1 pkg. noodles, cooked and drained
2 lbs. ground beef, cooked and drained
1 lg. onion, chopped and browned with hamburger
1 jar spaghetti or plain tomato sauce
2 c. shredded cheese

Put noodles in casserole dish. Top with ground beef, pour tomato sauce over that. Sprinkle cheese on top. Heat in 350 degree oven until warm through and cheese is melted.