Omelette muffins

This idea was from Pinterest. No specific recipe...just add any ingredients you want for the omelette then a tablespoon or so of beaten egg. My problem in the past was I added too much egg and it got very "puffy". So take it easy on the egg and go all out on the other ingredients. I especially like tomatoes, green onion, shredded cheese, ham and mushrooms. I usually season the eggs with salt and pepper before I add them to the mixture. Add all the ingredients to muffin pan and bake at 350 degrees for 30 minutes.