preheat oven 350 spray piece of aluminum foil w/ cooking spray . put foil on broiler pan , set aside .
mix 1/2 c tomato sauce , 3 tblsp salsa , pepper and egg whites in med bowl . stir in garlic , onions , mushrooms , oatmeal .
mix ground beef into turkey in lg bowl , add liquid ingredients to meat mix , mix well . remove mix from bowl, shape into 4x 8 retangular loaf and place into pan . mix 1/4c tomato sauce and 1 tblsp salsa , pour on top of meat . bake 55 min , let stand 5 min , serve