Slice the potatoes in half or keep whole if very small. Bring to the boil in a pan on a medium heat, and cook until tender, about 5-7 minutes. In the last couple of minutes add the kale. Drain the potatoes and kale and set to one side.
Meanwhile, heat the oil in an ovenproof frying pan over a medium heat and add the onion and radishes. Season generously and fry for 8-10 minutes, until the radishes are golden, and the onion is soft. Remove the radishes from the pan and put to one side.
Pour the potatoes and kale into the pan with the onion and radish mixture.
Mix the eggs and cheese together in a jug and season well. Pour into the frying pan and top with the radishes. Cook on a medium heat for 3-4 minutes until starting to set.
When the frittata has started to set, place the frying pan under the grill for a further 5 minutes.
Slide the frittata out of the pan onto a large plate and serve with salad.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.