Grate the zucchini and squeeze them well to remove excess water. It is important to remove the liquid to prevent the burgers from falling apart during cooking.
In a bowl, combine the zucchini with the breadcrumbs, egg, cheese (if using), salt, pepper and parsley. Mix well until the mixture is smooth.
Shape the zucchini burgers with your hands and cook them in a pan with a drizzle of olive oil for about 3-4 minutes per side, until golden and crispy. For a lighter version, you can cook the burgers in the oven at 180°C for about 15 minutes.
