Preheat your oven to 350 F.

Line a muffin tin with liners and set aside.

Crack the eggs into a large bowl and whisk to fully combine.

Chop the spinach and add it to the bowl with the eggs alongside the feta cheese, garlic, and sea salt and ground pepper. Mix to fully combine.

Pour the egg mixture evenly into the muffin tins, filling them just over ¾ of the way full.

Transfer the muffin tin to the oven and allow the muffins to bake for 20-25 minutes, or until the eggs are fully cooked through.

Once done, let cool and enjoy! Store any leftovers in an airtight container in the fridge for up to one week, or in the freezer for up to three months.