Impossible Cheeseburger Pie
["1 lb. ground beef", "1 1/2 c. onion, chopped", "1/2 tsp. salt", "1/4 tsp. pepper", "1 1/2 c. milk", "3/4 c. Bisquick", "3 eggs", "1 c. shredded Cheddar cheese"]
["Heat oven to 400\u00b0.", "Grease a pie plate (10 x 1 1/2 inches). Brown beef and onion; drain.", "Stir in salt and pepper.", "Spread in plate.", "Beat the milk, baking mix and eggs until smooth, 15 seconds in blender or 1 minute in mixer.", "Pour in plate.", "Bake for 25 minutes.", "Top with tomato (if desired) and cheese."]
["ground beef", "onion", "salt", "pepper", "milk", "Bisquick", "eggs", "Cheddar cheese"]