Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      pound         boneless beef sirloin steak
     1/2  cup           chopped onion
   1      can           campbell's -- (10 3/4 oz)
                        condensed cream of mushroom
                        soup
     1/2  cup           sour cream
     1/2  teaspoon      paprika
                        hot cooked noodles

Preparation:

Freeze steak 1 hour to make slicing easier.Cut steak into very thin slices across the grain.In a 2 qt. microwave-safe casserole, combine beef and onion.Cover with lid;microwave on high 5 minutes or until beef is no longer pink,stirring once during cooking. In small bowl,stir soup until smooth;stir in sour cream and paprika.Add to beef,stirring to coat.Cover,microwave @ 50 percent power 3 minutes or until heated through.Serve over noodles.