Impossible Quiche
["1 small can ham, drained", "1 c. shredded cheese", "1 3/4 c. milk", "1 c. Bisquick", "3 eggs", "1/4 tsp. salt", "1/8 tsp. pepper", "1 small can mushrooms (optional), drained"]
["Grease 1 (9-inch) pie pan or a 10-inch quiche pan. Scatter drained ham in pan. Evenly scatter cheese over ham. Beat remaining ingredients 15 seconds in blender. Pour into pan. Bake at 400\u00b0 for 35 to 40 minutes."]
["ham", "shredded cheese", "milk", "Bisquick", "eggs", "salt", "pepper", "mushrooms"]