2 (16 oz.) cans pork & beans
1/2 c. chopped onion
1/2 c. catsup
1/4 c. firmly packed brown sugar
1/2 tsp. dry mustard
4 frankfurters, cut in 3/8 inch slices

Combine first 5 ingredients; spoon into lightly greased, shallow 2 quart casserole. Cover with heavy-duty plastic wrap; fold back a small edge of wrap to allow steam to escape. Microwave on high 8 to 9 minutes, stirring once. Add frankfurters. Microwave on high 8 to 9 minutes, stirring once. Yield: 6 servings.