Green burgers

• olive oil↗2 tbsp tbsp
• onions↗2

  finely chopped

• bag spinach↗250g g
• slices white bread↗5

  blitzed into breadcrumbs (or 150g dried breadcrumbs)

• good grating of fresh nutmeg
• mature cheddar↗100g g

  grated

• parmesan↗40g g

  finely grated

• large eggs↗1-2

  beaten

• plain flour↗3 tbsp tbsp
• crusty bread↗6

  rolls

• ripe, juicy tomatoes↗4

  thickly sliced

• good-quality ketchup↗

  or other relish

• sweet potato fries

  (optional)

Step-by-step instructions

1. 1

   Heat half the oil in a frying pan and gently fry the onions for about 10 mins until pale and soft, then leave to cool a little.

2. 2

   Finely chop the spinach in a food processor and tip into a bowl. Add the cooled onion, breadcrumbs, nutmeg, cheddar and Parmesan, and mash together. Add the beaten egg, a little at a time (you may not need all of it), until the mixture holds together. Divide into eight (see tip below) and shape into fat burgers.

3. 3

   Put the flour in a shallow bowl, season well and dip the burgers into the flour to coat. Store in a plastic container between layers of baking parchment. Either chill until ready to cook, or freeze.

4. 4

   Heat the remaining oil in the frying pan and fry for about 5 mins each side until browned all over. Serve in the crusty rolls, with a couple of slices of tomato, ketchup and sweet potato fries on the side, if you like.