15 minute stroganoff

Fifteen Minute Stroganoff
1 pound round steak
2/3 cup water
3 ounces canned mushrooms
1 envelope onion soup mix
1 cup sour cream
2 tablespoons flour
egg noodles, cooked and drained
Cut meat into thin strips; brown in shortening. Add water and mushrooms. Stir in onion soup mix; heat to boiling. Blend sour cream and flour, and add to hot mixture. Let thicken. Serve over noodles.NOTE: To make ahead, prepare completely; let cool and freeze. On serving day, make fresh noodles and heat sauce. Sauce will separate somewhat, but vigorous stirring brings it right back!