1 Beat the eggs in a bowl and season with salt and pepper.
2 Heat the frying pan to 2/3 of the maximum power of your stove with the butter.
3 When the butter starts to foam, add the spinach and mix quickly for 30 seconds.
4 Pour the eggs over the spinach, add the pieces of tuna and cook for 2 min.
Tip: You can add some pine nuts for a bit of crunch.