Prepare potatoes (200 g) and egg (100 g) for one serving. Grate and squeeze the potatoes dry. Form two patties and pan-cook until golden and cooked through; top with fully cooked eggs.
Prepare spinach (80 g) and feta (40 g). Add them during the final cooking stage or as a fresh garnish, as appropriate to their texture.
Check that raw meat, fish and eggs are thoroughly cooked as applicable; taste and season with salt and pepper. Serve promptly.