Preheat oven to 375 F degrees. Spray muffin tin with non-stick spray (I only sprayed the tins I was going to use, don't want to waste).
Whisk eggs in a large bowl and add baking powder, salt and pepper. Make sure all ingredients are mixed together. Add cheese, scallions, bell pepper and bacon to muffin tins. Mix mixture with a fork or spoon. Pour the egg mixture into muffin tins until about 3/4 full.
Bake for 13-16 minutes, until eggs rise and sides are slightly browned (don't over cook or the egg muffins become chewy and dry). Enjoy!