Mediterranean Turkey Burgers

Name: Mediterranean Turkey Burgers
Prep time: 30 min
Cook time: 15 min
Total time: 45 min
Cuisine: American
Ingredients: 1/2 cup plain Greek yogurt ($0.50); 1/2 Tbsp lemon juice ($0.03); 1/8 tsp garlic powder ($0.02); 1/8 tsp dried dill ($0.02); 1/8 tsp salt ($0.02); 19 oz. ground turkey (see notes, $3.89); 1/4 cup sun dried tomatoes ($0.83); 1/4 cup minced red onion ($0.08); 2 oz. frozen spinach (1 cup when frozen, $0.25); 1/4 cup crumbled feta ($0.57); 1 tsp dried oregano ($0.10); 1/4 tsp garlic powder ($0.02); 1/4 tsp salt ($0.02); 1 Tbsp cooking oil ($0.04); 5 hamburger buns ($3.04); 1/2 cucumber (sliced, $0.75)