1 1/2 lbs. hamburger
1 pkg. Lipton onion soup mix (dry)
1/2 c. water
1 c. catsup
2 tbsp. mustard
2 tsp. vinegar
1 can kidney beans
2 jars B & M beans
1 sm. can mushrooms (opt.)

Brown hamburger. Add remaining ingredients. Bake at 350 degrees for 1 hour.