Put the eggs & spinach into a blender and process until smooth. Season with salt and pepper. Add your chosen extras (I added garlic and a pinch of cayenne this time).
Lightly grease a pancake or flat frying pan and add a large ladleful of the mixture, letting it spread out evenly.
When the surface of the omelette/pancake is no longer runny, flip it over and cook for another minute or so.
Slide it to a plate and repeat the above with the remaining egg mixture. You should get 3 thick or 4 thin pancakes.
Let them cool, then add your filling and roll them up, like you would with a tortilla or pancake.
Serve at room temperature.