cayenne pepper, optional
green chiles, chopped
monterey jack cheese, shredded
Combine 1/2 cup spaghetti sauce, ground beef, bread crumbs, onion, egg, pepper and cayenne (if using); mix well.
In 13 x 9-inch baking dish, pat ground beef firmly into bottom of dish.
Bake at 400 degrees for 10 minutes; spoon off fat.
Prepare muffin mix as per package instructions; stir in chopped chiles.
On beef mixture, spread remaining sauce; sprinkle with cheese.
Spread corn muffin mix over all and bake 15 minutes more to golden brown.