Beat the egg in a small bowl. Grease with coconut a small pan, heat  over medium heat and pour the egg. When starts to get white, add the vegetables to one half of the omelette, add  pepper and close. 

Brown a little, flip it and brown a little more. Remove and place on a plate and serve immediately.

*Remove  yolk if you have indicated only egg white in your plan

*You can also use mushrooms, broccoli, asparagus, cucumber, cauliflower