Crockpot Hash

1 1/2 pounds lean ground beef
1 (32 ounce) package hash brown potatoes, thawed
1 package brown gravy mix
1 cup boiling water
1 1/2 tablespoons butter or margarine
Chopped fresh or dehydrated onion, to taste

Cook beef on stove until all pink is gone, breaking up as it cooks; drain off liquid. Put beef, onion and potatoes in crockpot; stir.

Mix gravy and boiling water; pour over mixture. Dot with butter. Cook on LOW for 7 to 8 hours.