Middle Eastern Spiced Lamb Burgers With Feta and Labneh Recipe

Name: Middle Eastern Spiced Lamb Burgers With Feta and Labneh Recipe
Ingredients: 1 lb. ground lamb; 1 small onion (peeled and very small diced or grated); 1 clove garlic (peeled and very finely minced or grated); 2 tablespoons fresh parsley (chopped); 1 teaspoon ground cumin; 1/2 teaspoon ground coriander; 1/4 teaspoon ground cinnamon (or more to taste); Salt to taste; Pepper to taste; 1/4 cup labneh; 1/4 cup crumbled feta cheese; Garnish: baby spinach (or other greens) for topping; 4 seeded buns (or other favorite rolls, sliced in half)