1 onion, finely chopped
4 baked potatoes, cooled (see the recipe tip)
salt and ground black pepper
2 tsp vegetable oil
75驳/2戮辞锄 cheddar, grated
200g/7oz garlic and herb soft cheese
4 rashers bacon (about 150g/5陆oz), cut into small pieces
250g/9oz frozen peas