Grilled Greek Chicken Kebabs with Mint-Feta Sauce Recipe

Ingredients

• 1 pound boneless, skinless chicken thighs, cut into twenty-four 1 inch pieces
• 1 zucchini, halved lengthwise and cut crosswise into sixteen 1 inch pieces
• 1/2 small red onion, quartered, layers separated
• 2 tablespoons olive oil
• 1 teaspoon dried oregano
• 3 tablespoons red-wine vinegar
• Coarse salt and ground pepper
• 1/2 cup crumbled feta (2 ounces)
• 1/4 cup plain low-fat yogurt
• 1 cup fresh mint leaves