Step 1

Preheat oven to 350°F and spray cooking spray in a muffin pan. Set aside.

Step 2

In a large bowl, use a whisk to beat the eggs until frothy.

Step 3

Add the shredded cheese and stir to combine. Set aside.

Step 4

In a frying pan on the stove, cook the onion and bacon over medium heat for about 10 minutes. Add in spinach and stir to combine. Cook for about 3 minutes or until spinach is wilted. Remove from heat and let cool for five minutes.

Step 5

Add spinach mixture to the egg mixture and stir until thoroughly combined.

Step 6

Ladle the egg mixture into a muffin pan being careful to not overfill the muffin cups. Cook for 15 minutes.

Step 7

Remove from oven and let cool for 5 minutes.

Step 8

To remove the muffins from the pan, use a knife and glide around each muffin until you can gently remove them. Serve immediately.