Preheat oven to 350 degrees. Prepare 12 muffin rounds with non-stick cooking spray.
Remove crescent rolls from the package. Using a rolling pin, roll out the dough until it's in one even layer. Cut the dough into 12 even squares. Press the dough into each round of the pan.
Top the dough with bacon, pepper, spinach, and cheese.
Whisk together eggs, milk, salt, pepper, and garlic powder.
Pour the egg mixture evenly into the muffin rounds. The egg mixture should fill each cup up about 3/4 of the way because the egg bites puff up when cooked.
Bake for 18-22 minutes, until the eggs are set.
Let cool for 5 minutes before removing from the pan and enjoying.