0 Chop up about 1/3 of an onion. Brown a pound of hamburger with the chopped onion - add some chopped mushrooms if you've got 'em. Salt and pepper to taste. Make up a packet of brown gravy. Put the browned beef in a deep 9" pie plate. Add enough gravy to make a nice stew texture, mix well. Top with cheese slices - American is fine for this. Then for crust, you have two choices. The first is a layer of mashed potatoes. The second is biscuit crust, if you're feeling ambitious enough to make biscuit dough from scratch. Either way, top the pie with the crust, cut a few steam slits, and bake at 450 for about 15 minutes. A great favorite of the toddler and acceptable to adults as well.