1Heat oven to 400°F. Spray 9-inch pie plate with cooking spray. In 10-inch skillet, cook beef over medium heat 8 to 10 minutes, stirring occasionally, until brown; drain. Stir in cut-up tomatoes, onion and chili seasoning mix. Spread in pie plate. Sprinkle with olives and cheese.
2In medium bowl, stir Bisquick mix, milk and eggs with wire whisk or fork until blended. Pour into pie plate.
3Bake 30 to 35 minutes or until knife inserted in center comes out clean. Let stand 5 minutes before serving. Serve with sour cream, lettuce and chopped tomatoes.