Grate the courgettes and place them in a bowl; add the quinoa, grated Grana Padano, pumpkin seeds, one peeled boiled potato, an egg and a drizzle of extra virgin olive oil.
Stir together until the mixture is well-combined and soft. Shape into 4 burgers and fry in a skillet, with a drizzle of extra virgin olive oil, for 3-4 minutes on each side.
Serve the burgers hot with a side of fresh vegetables.