I once ate this dish at a breakfast restaurant. They used only egg whites and called it "White Lightning". I've kept the yolks because the fat keeps me fuller longer. You could make this into a proper omelette, but I find it easier just to scramble everything together in the pan.
For each person you'll need:
1/4 cup chopped cooked spinach (I use frozen)
1/4 cup chopped cooked chicken (preferably seasoned with Mexican seasonings)
1/4 cup shredded cheese (I like Monterey Jack)
1/8 cup chopped avocado
1. Heat butter in skillet over medium heat. Add spinach and chicken. Cook until heated through.
2. Break eggs into pan. Scramble all ingredients.
3. When eggs are almost done, add cheese. Cook until cheese is melted and eggs are cooked to your liking.
4. Top with chopped avocado. Serve immediately. Also works great as a filler for a breakfast burrito.