Combine chili and next 4 ingredients; stir well. Spread mixture into a greased 11x 7x 2-inch baking dish. Sprinkle with cheese. Combine eggs, mayonnaise, milk, flour, and baking powder; stir until smooth using a wire whisk. Spoon over cheese, spreading evenly. Bake at 350 degrees for 45 to 50 minutes or until set. Let stand 10 minutes before serving.