Use a knife and cutting board to roughly chop the spinach into small pieces. Set aside.
1/2 cup wilting spinach
Crack two large eggs into a bowl and beat with a fork or whisk until fully combined and slightly frothy.
2 large eggs
Heat the frying pan over medium-low heat and add the butter, allowing it to melt and foam slightly, coating the pan evenly.
1 tablespoon butter
Pour the beaten eggs into the pan, gently swirling to distribute evenly. Cook without stirring until the edges begin to set and you see a slight puff in the center, about 1-2 minutes.
Add the wilted spinach and shredded cheese evenly across the eggs. Continue cooking until the eggs are mostly set but still slightly runny on top, approximately 1-2 minutes. Season with salt and pepper as desired.
1/2 cup wilting spinach, 1 slice cheese, to taste salt, to taste pepper
Gently fold the mixture or slide it onto a plate to finish cooking and serve immediately while still moist and warm.