Hamburger Stroganoff

When we were early marrieds, I considered this a 'company dinner' because we couldn't afford sour cream.

1 lb ground beef
1 medium onion chopped
1/4 cup butter
1 tablespoons flour
1 teaspoon salt
1 teaspoon garlic salt
1/4 teaspoon pepper
1 cup mushroom stems and pieces cut up
1 can cream of chicken soup
2 cups hot cooked noodles

In large skillet, cook and stir ground beef and onion in butter until onion is tender. Stir in flour, salt, garlic salt, and pepper and mushrooms. Cook 5 minutes stirring constantly. Remove from heat. Stir in soup, simmer uncovered 10 minutes. Stir in sour cream, heat through. Serve over noodles.