Hamburger Stroganoff

1/2 c. minced onion
1 lb. ground beef
2 tbsp. flour
2 tsp. salt
1/4 tsp. pepper
1 8 oz. can sliced mushrooms
1 can cream of chicken OR mushroom soup
1 c. sour cream
2 tbsp. minced parsley

Saute onion over medium heat and add meat; brown. Add flour, salt, pepper, and mushrooms. Cook 5 minutes and add soup. Simmer uncovered 10 minutes. Stir in sour cream. Heat through. Sprinkle with parsley. Serve over noodles, mashed potatoes, or baked potatoes.