hamburger gravy

Hamburger gravy
2 lbs ground beef cooked with 1 small onion, diced
2 T beef bouillon
1/4 c flour
1 quart milk
salt and pepper to taste
Sprinkle flour over your cooked ground beef and onion. Stir until evenly coated and all fat is absorbed. Place skillet over medium heat, add 1/2 of milk and 2 T beef bouillon. Stir until gravy begins to thicken. Add remaining milk until desired consistency has been reached and gravy comes to a boil. Season with salt, pepper. Serve over mashed potatoes and with peas