Children love this!

1/2 lb. ground beef
1/2 onion, chopped fine
1/2 green pepper, chopped fine
1 can spaghetti

Saute onions and green pepper. Add ground beef. Brown ground beef and drain off grease. Add above ingredients to one can of spaghetti in a casserole dish. Bake for 30 to 45 minutes in a 350 degree oven.