01 -
Heat the oil in a large skillet or frying pan. Saute the mushrooms until they are tender and have fully released their water, for about 6-8 minutes. Set aside.
02 -
Place the spinach in the frying pan or skillet used for the mushrooms. Add 2 tablespoons of water, more or less, and cook over medium heat until the spinach is wilted, for about 2-4 minutes. Pack the spinach in using a spatula or your hand.
03 -
Return the mushrooms to the skillet. Lightly season the vegetables with salt and pepper at this stage.
04 -
Create wells in the spinach and mushrooms mixture, one well for each egg. Dot each well with a small amount of butter or spray with oil. Crack an egg into each well, then season the eggs with salt and pepper.
05 -
Cook the eggs to your preferred doneness, for approximately 5-6 minutes. Serve hot, directly from the skillet.