2 tablespoons margarine
1 pound ground chuck
1 envelope onion soup mix
2 pounds pork and beans
1 pound canned pinto beans
2 tablespoons mustard
2 tablespoons vinegar
1 cup ketchup
1/2 cup cold water

Brown ground chuck in margarine; drain. Add remaining ingredients and stir. Pour into a 2 1/2-quart casserole. Bake at 400 degrees F for 35 to 45 minutes or until bubbly. Makes 6 to 8 servings.

For crockpot: Double recipe, omitting water and drain the pinto beans.