Ground Beef Stroganoff - cooking recipe

Ingredients

1 lb. hamburger
1/4 c. chopped onion
1 Tbsp. butter or margarine
1 Tbsp. flour
4 Tbsp. catsup
2 Tbsp. Worcestershire sauce
1/2 tsp. salt
1/4 tsp. pepper
2/3 c. sour cream

Preparation

Saute onion in butter; add beef and cook.
Add remaining ingredients and simmer 20 minutes.