Spanish Omelette

There are endless variations on the plain and humble omelette and this is about as authentically Spanish as, well I'm not sure. Nothing Spanish that's for sure.. But it's tasty and a good way to use up leftovers/frozen veg.

For 3-4 people you need:
6 eggs, lightly beaten
1 onion, diced
1 red and 1 yellow pepper, diced
1 courgette, diced
1 tin sweetcorn/1/4 cup frozen corn
1/3 cup frozen peas
1/2 cup grated cheddar
1 tomato, sliced
1/2 cup mushrooms, sliced
salt and pepper
oil

Begin by sauteeing the onion in the oil for a few mins, then add everything else aside from the eggs, cheese and tomatoes. Cook for 2-3 mins. Season the eggs, then add the cheese to the eggs and put this into the pan. and move everything about a bit to ensure even distribution. Cook on a low heat till the bottom is done. At this point you have a choice. You can either put it under the grill to cook the top (add the sliced toms at this point and maybe a touch more cheese) or you can put it in the oven to finish it or you can be brave and invert it on a plate and slide it back into the pan or you can transfer it to a glass dish and nuke it in the microwave. Whatever you decide to do, the omelette needs to be fully cooked. You can then either eat it hot or room temp or cold.