Lightly grease 2 oven safe dishes with half the butter
Heat a medium sized pan over medium heat and add the rest of the butter
Cook spinach just until wilted
Add spinach to the oven-safe dishes
Crack an egg on top of each dish
Season with salt and pepper
Crumble the feta cheese over the top
Bake for 18 minutes or until the eggs are set.
Notes
When there are 2 of us we use 4 eggs and the same amount of the other ingredients. It makes 4 beautiful ramekin size dishes and we feel like we are really splurging.