1 lb. hamburger
1 onion
1/2 tsp. salt
1/4 tsp. black pepper
2 tbsp. vinegar
1 tbsp. sugar
1 (32 oz.) can pork and beans
3/4 c. ketchup

Cook hamburger and onion until pink is out. Drain and mix other ingredients. Add to hamburger mixture.

Bake 30 minutes at 350°F.