Breakfast Egg Muffins 3 Ways

large eggs

finely chopped onion, ((red, white or yellow/brown))

Salt and pepper, (to taste)

fresh spinach, (roughly chopped)

grape or cherry tomatoes, (halved)

shredded mozzarella cheese

cooked bacon, (chopped)

shredded cheddar cheese

sliced brown mushrooms

red bell pepper, ((capsicum), diced)

fresh chopped parsley

garlic powder (or 1/3 teaspoon minced garlic)