Gently chop the spinach and crumble the feta.
Mix the ground turkey, spinach, feta, garlic, oregano, onions, sage, thyme, a few grinds of black pepper and salt together in a large bowl. Gently guide the mixture and shape into patties. If patties are too soft, refrigerate for 30 minutes.
Heat a drizzle of olive oil in a large frying pan over a medium-high heat. Once hot, add the patties to the pan. Do care not to overcrowd the pan. Allow patties to cook for 5-6 minutes until golden brown, then flip and cook for another 4-5 minutes until cooked through.
Remove from the pan and serve with your favorite burger toppings and sides. Enjoy these with 2 toasted burger buns, mustard mayo, sautéed mushrooms, and a couple of slices of tomato.
