Turn your oven to 250C (480F). Squeeze defrosted greens to remove as much moisture as possible to give you about 125g (4.5oz) greens. Place squeezed greens in a medium bowl. Finely dice or crumble feta and add to the greens. Add almond meal, eggs and a pinch of salt. Stir to combine.

With clean hands form 1/2 the mixture into a large patty about 2.5cm (1in) tall. Place on a baking tray lined with paper. Repeat with the remaining mixture to make your second burger patty. Drizzle with a little oil.

While the burgers are cooking, combine mayo and yoghurt in a small bowl with a pinch of salt.

When the burgers are cooked divide the sauce between 2 plates. Top each with a hot burger and enjoy!