Preheat oven to 375°. Spray 12 muffin cups with cooking spray.
Heat a medium nonstick skillet over medium heat. Coat pan with cooking spray. Sauté onions, peppers and garlic for 5 minutes or until tender; remove from heat. Stir in potato, cheese and bacon.
Beat eggs. Season with salt and pepper. Spoon vegetable mixture evenly into prepared pan. Pour egg mixture evenly over vegetable mixture.
Bake at 375° for 18 minutes or until set.