Pizza omelette

• 4 eggs
• 1 tablespoon cold water
• salt and freshly milled pepper

Make the topping: peel and finely chop the onion. Melt the butter in a saucepan over low heat, add the onion and fry gently for 5 minutes to soften but not brown. Meanwhile, trim and chop the bacon rashers and fry gently in a dry pan until the fat runs and bacon is crisp. Add the tomato purée and herbs to the onion and cook for a further 1 minute, then draw off the heat.

Thoroughly heat