PREPARATION:
- Preheat oven to 350°F. Cook ground beef and onions in medium skillet over medium-high heat until beef is brown.
- Reserve 2 tablespoons chiles for Mexican Sour Cream Topping, if desired. Stir remaining chiles, corn, tomato soup, salsa, olives, Worcestershire sauce, chili and garlic powders into skillet until well blended.
- Transfer to 2-quart casserole. Top with cheese; evenly spread muffin cubes over cheese. Bake 5 to 10 minutes or until cheese is melted. Meanwhile, prepare Mexican Sour Cream Topping, if desired. Serve casserole with topping, if desired.
