Remove seeds from peppers. Stuff generously with corn/onion/cheese mixture. Nestle into baking dish. Make a well in the center of each pepper. Add egg. Sprinkle with shredded cheese.
Bake at 375 for 25-30 minutes until egg whites are set. Allow to rest 10 minutes. Serve with sliced avocado, fine diced red onion and fresh cilantro leaves.