Breakfast Panini (No Panini Press Needed!)

1. In a large nonstick pan over medium heat, sauté the spinach in olive oil until tender but not completely wilted (~1 min).
2. Beat the eggs with salt and pepper and add them to the pan. Spread into one layer and cook undisturbed until the eggs cook through in one flat sheet, like an open face omelet (~2 mins). Turn off the heat and fold the edges of the eggs in to create a rectangle the size of the bread, then transfer onto a plate.
3. Spread softened butter on two pieces of bread. Flip the bread over so the butter is facing out, and add the eggs and cheese. Place the second piece of bread on top of the sandwich, buttered side facing out.
4. Preheat a grill pan or medium skillet over medium heat. Add the sandwich and place a piece of parchment paper on top of the sandwich. Place a heavy skillet on top to gently press down. Cook until golden brown (~3 mins), remove the skillet and parchment paper, flip the sandwich, and press down with the parchment and skillet on top. Cook on the other side until golden brown (1-2 mins).
5. Carefully open up the sandwich and add some more fresh spinach if desired. Slice in half and enjoy!