Greek Chicken Burgers With Cucumber Yogurt Sauce

Ingredients

• 1/2 cup plus 2 tablespoons plain nonfat Greek yogurt
• 1/2 medium cucumber, peeled, seeded, and finely chopped
• Juice of 1/2 lemon
• 3 cloves garlic, minced, divided
• 2 teaspoons finely chopped fresh mint or 1/2 teaspoon dried mint
• 1/8 teaspoon salt
• 1/8 teaspoon ground white pepper
• 1 pound ground chicken breast
• 3 ounces reduced-fat crumbled feta cheese
• 4 large kalamata olives, rinsed, patted dry, and minced
• 1 egg
• 1/2 to 1 teaspoon dried oregano
• 1/4 teaspoon black pepper
• Fresh mint leaves or mixed baby lettuce (optional)