- 1 kohlrabi
- 2 large handfuls of baby leaf spinach
- A punnet of cherry vine tomatoes
- 2 spring onions
- 1 lemon
- A pack of fish pie mix
- A pot of 0% fat crème fraîche
- 1 tsp grated Parmesan
- 2 tbsp hot water
- Sea salt
- Freshly ground pepper
- Pan with a lid
- Colander
- Bowl
- Heatproof dish
- 1.
Fill a kettle and boil it. Trim the leaves and stalks from the kohlrabi. Peel it. Slice it into thin rounds. Pop in a pan. Cover with hot water from the kettle. Cover. Bring to the boil. Simmer for 5 mins. Drain.
- 2.
Pop the spinach in the hot pan. Add 2 tbsp hot water. Cook over a lowish heat for 2 mins till the spinach wilts. Drain. Press the spinach in the colander with the back of a spoon to squeeze out as much water as possible.
- 3.
Roughly chop the spinach. Halve the tomatoes. Trim and finely slice the spring onions. Finely grate the zest from the lemon.
- 4.
Pop the spinach, tomatoes, spring onions and lemon zest in a bowl. Add the fish pie mix and some salt and pepper. Stir in the crème fraîche.
- 5.
Heat your grill to high. Spoon the gratin mix into a heatproof dish. Grill for 8-10 mins till the gratin starts to bubble and picks up a little golden colour.
- 6.
Take the gratin out from underneath the grill. Layer the kohlrabi slices over the top of the gratin.
- 7.
Grate a little of the Parmesan so you have 1 tsp. Sprinkle this over the top of the gratin.
- 8.
Put the gratin back under the grill for another 8-10 mins till the gratin is golden, bubbling and cooked all the way through. Serve with the lemon, sliced into wedges, for squeezing.