3 (16 oz.) can pork and beans
1 lb. pkg. beef wieners, cut into bite-size pieces
2 med. onions, chopped fine
1 c. brown sugar
1/2 c. sliced mushrooms (optional)

Combine all ingredients in 8x12 inch glass baking dish. Bake uncovered 30 minutes at 350 degrees. Stir occasionally. Cool slightly before serving.