Heat oven to 350°F. Spray 9-inch glass pie plate or 9 1/2-inch glass deep-dish pie plate with cooking spray. In 12-inch skillet or 4-quart Dutch oven, cook beef and onion over medium-high heat, stirring occasionally, until thoroughly cooked; drain. Stir in bell pepper, corn, taco seasoning mix, tomatoes and enchilada sauce. Heat to boiling; remove from heat.