Impossible Taco Pie
["1 lb. ground beef", "1/2 c. chopped onion", "1 pkg. taco seasoning mix (1 1/4 oz.)", "1/2 c. chopped green pepper", "1 1/4 c. milk", "3/4 c. Bisquick baking mix", "3 eggs", "2 tomatoes, sliced", "1 c. shredded Cheddar cheese"]
["Heat oven to 400\u00b0.", "Grease pie plate 10 x 1 1/2-inch.", "Cook and stir beef and onion until brown; drain.", "Stir in seasoning mix.", "Spread in pie plate, top with chopped pepper.", "Beat milk, Bisquick and eggs until smooth, 15 seconds, blender on high or 1 minute with hand beater.", "Pour into pie plate.", "Bake 25 minutes."]
["ground beef", "onion", "taco seasoning mix", "green pepper", "milk", "Bisquick baking mix", "eggs", "tomatoes", "Cheddar cheese"]