Grate the courgette into a bowl with the turkey mince. Crush the garlic, chop the sundried tomatoes finely and add to the mince mix. Finally stir in the oregano.

Shape into 8 flat burger shapes (or alternatively use a burger press). Turn a griddle pan onto a high heat and griddle the burgers on each side for 5mins.

Whilst the burgers are cooking, finely slice the red onion to create rings. Fry these in a little oil until caramelised.

Once the onion rings and burgers have cooked begin building the burgers.

Slice each roll in half: first layer on a few spinach leaves, a slice of beef tomato, then the burgers, a slice of mozzarella and finally the onion rings before topping off with the other half of the bun.

Serve hot with salad!