Spinach Feta Turkey Burgers

Bahan-bahan (4 porsi)

• 1 cup chopped fresh spinach
• 1 teaspoon minced garlic
• ½ cup grated yellow onion
• 1 teaspoon dried oregano
• ½ teaspoon kosher salt
• ¼ teaspoon ground black pepper
• 6 ounces crumbled feta
• 1 pound ground turkey
• ½ cup plain Greek yogurt
• 2 tablespoons fresh lemon juice
• ¼ teaspoon kosher salt
• 2 pinches ground black pepper
• 4 hamburger buns
• green leaf lettuce (for topping)
• sliced tomato (for topping)