1 1/2 lb. ground beef
1 lg. jar Ragu sauce
1 onion
1 (8 oz.) pkg. thin spaghetti broken into pieces
1 c. shredded cheese cheddar, Mozzarella, or sprinkle with Parmesan cheese

Brown meat and onion, chopped, in large skillet or Dutch oven. Drain off fat. Heat mixture to boiling. Reduce heat, cover and simmer about 5 minutes. Pour mixture into ungreased 2 or 2 1/2 quart casserole. Cover and bake in 375 degree oven, stirring occasionally until spaghetti is tender, about 45 minutes. Uncover and sprinkle with cheese and bake about 5 minutes.