Preheat oven to 400 deg F
Crack your eggs into a bowl
Add diced mushrooms (amount you add is entirely up to you - pictured here is 1 mushroom diced fine)
Add your diced tomatoes
Add your green and red pepper (chopped)
Add your diced tomatoes and mix together
Pour into a muffin/cupcake baking dish, fill about 2/3rds
Bake for 15 minutes or until top surface is firm.
Use a knife or spoon to remove the egg muffin cups.
Voila! You've finished. Eat with coffee, yogurt, etc.