Impossible Macaroni And Cheese Pie
["1 c. uncooked macaroni", "2 c. shredded Cheddar cheese", "2 1/4 c. milk", "4 eggs", "1/2 c. Bisquick baking mix", "1/4 tsp. salt", "1/4 tsp. red pepper sauce", "1/4 c. shredded Cheddar cheese (additional for topping)"]
["Preheat oven to 400\u00b0.", "Grease a 10 x 1 1/2-inch pie plate."]
["macaroni", "Cheddar cheese", "milk", "eggs", "Bisquick baking mix", "salt", "red pepper", "Cheddar cheese"]