2 lb. ground beef
1 lg. onion, chopped
1 c. ketchup
4 tbsp. mustard
1 lg. can pork and beans
1/2 c. brown sugar
Salt and pepper to taste

Brown hamburger and onion. Drain grease. Add the rest and mix. Pour into large casserole. Cover.

Bake at 350 degrees for 1 hour. Remove cover and bake 15 minutes more.