Preheat oven to 375 degrees F and spray a mini muffin pan with cooking spray.
In a small skillet, cook the onion and green pepper in olive oil over medium heat until tender, or to desired texture, usually 5 to 10 minutes.
Once the onion and green pepper is cooked, add the garlic and cook for about 30 seconds to 1 minute. Remove pan from heat.
In a bowl, whisk together eggs. Add the broccoli, salt, and pepper. Mix.
Now add the cooked onions, garlic, and green pepper to the egg mixture and mix again.
Spoon mixture into mini muffin pan and bake for 10-12 minutes, or until done. Enjoy!