Mashed Potatoes and Hamburger Gravy

INGREDIENTS

3-4 potatoes

1/2 lb hamburger

chopped onion (optional)

3 tbsp flour

1 1/2 c. milk

Salt

Pepper

DIRECTIONS:

Brown hamburger in skillet. Add flour and stir. Add milk and stir. Stir until thickened and bubbly. Add salt and pepper to taste. Serve hamburger gravy over mashed potatoes.