1 lb. ground beef
1 med. onion
1 tsp. salt
1 c. tomato ketchup
2 tbsp. mustard
1 tbsp. vinegar
1 c. brown sugar
2 (1 lb.) cans pork & beans
1 (1 lb.) can kidney beans

Brown ground beef and drain. Chop onion and mix with ground beef. Mix the rest of the ingredients with the beef and onion. Bake, uncovered, 30 minutes at 400 degrees.