Impossible Taco Pie

1 pound ground beef
1 medium onion, chopped
1 envelope taco seasoning mix
1 (4 ounce) can chopped green chiles, drained
1 1/4 cups milk
3 eggs
3/4 cup Bisquick Baking Mix
2 tomatoes, sliced
1 cup shredded Monterey jack or Cheddar cheese

Heat oven to 400 degrees F. Grease a 10-inch pie plate.

Cook and stir ground beef and onion in 10-inch skillet until beef is brown; drain. Stir in dry taco seasoning mix. Spread in plate; sprinkle with chiles.

Beat milk, eggs and baking mix until smooth, 15 seconds in blender on high or 1 minute with hand beater. Pour into plate. Bake 25 minutes.

Top with tomatoes; sprinkle with cheese. Bake until cheese is golden brown and knife inserted in center comes out clean, 8 to 10 minutes longer.

Cool 5 minutes.

Serve with sour cream, chopped tomatoes and shredded lettuce if desired.

Makes 6 to 8 servings.