Spud Burgers
["1 lb. ground beef", "1 c. coarsely grated raw potatoes", "1/4 c. chopped mushrooms", "1/4 c. chopped onion"]
["Combine all ingredients.", "Form into a roll.", "Bake 45 minutes in 350\u00b0 oven or on charcoal grill, basting with steak or barbecue sauce as desired.", "Slice for burgers."]
["ground beef", "potatoes", "mushrooms", "onion"]