1 lb. ground beef
1 sm. onion, chopped
1 can cream of mushroom soup
1/2 c. milk
2 c. cooked noodles
2 tbsp. butter
1 tsp. salt
1/4 tsp. pepper
1/2 c. sour cream

Brown ground beef; drain fat. Saute onions until tender. Cook noodles while meat is browning. Stir in soup, milk, noodles, butter, salt and pepper; simmer, covered, 10 to 15 minutes. Uncover and simmer 10 minutes. Remove from heat and stir sour cream. Heat through but do not boil. Serve immediately.