2. Melt the butter in a pan and add the plain flour. Gradually whisk in the milk until sauce is smooth. Season to taste with salt and pepper, and add the mustard and garlic granules.
3. Microwave the Cauliflower Cheese gratin as per pack instructions. Add the contents of the pack into the cheese sauce along with the curly kale.
4. Boil the pasta for 2 mins less than stated on the pack. Drain and add the pasta to the cheese sauce, mix really well.
5. Spoon the macaroni cheese into an oven safe dish. Sprinkle with extra cheese and the panko breadcrumbs.
6. Place the dish in the oven and bake for around 20 minutes or until golden brown on top.