1 lb. ground beef
2 tbsp. butter
1/2 c. onion, chopped
2 tbsp. flour
1 1/2-2 c. milk

In medium skillet, brown beef and drain all fat. Spoon beef in bowl and hold aside. In same skillet, at medium heat, melt butter. Lightly brown onion; add beef. Sprinkle flour into beef while stirring. Add small amounts of milk; keep stirring. When gravy reaches desired consistency, remove from heat. Pour over toast or biscuits. Salt and pepper to taste.