2 lbs. ground beef
2 med. onions, minced
2 (8 oz.) pkgs. egg noodles
2 tbsp. butter
2 cans mushroom soup, undiluted
2 c. sour cream
Salt and pepper to taste
1 c. grated sharp cheese
Crushed potato chips

Brown beef and onions. Cook noodles according to package directions; drain. Blend sour cream and soup, add seasoning. Alternate layers of noodles, beef mixture, cheese and soup mixture in greased 5 quart casserole. Bake at 350 degrees to 375 degrees for 30-40 minutes. Before baking, garnish top with potato chips.