A super quick mid-week meal that can be made with pantry ingredients. Another recipe I found in the first edition - September 2005 - of the new Australian magazine 'Notebook: ideas for living' and have adapted for posting here.
Combine tuna, beans, pecorino, baby spinach leaves and oregano in a large bowl, add the eggs, season to taste with salt and freshly ground pepper, and mix well, using a fork.
Heat the oil in a large, heavy-based, non-stick pan over a medium-high heat; add the egg mixture and cook for 2-3 minutes until it is setting around the edges. Using a spatula or egg slide, slightly lift around the edges to allow some of the uncooked mixture to run under the sides. Cook for another 2-3 minutes or until it is set around the edges but still soft in the middle.
Invert the frittata onto a plate, and slide back into the pan for another 3 minutes or until almost cooked in the middle. Remove from the heat and allow the frittata to stand for 5 minutes in the pan.