Marinated Greek Kebabs

Ingredients

• 1 (8-ounce) carton plain fat-free yogurt
• 1/3 cup (1.3 ounces) crumbled feta cheese with basil and sun-dried tomatoes
• 1/2 teaspoon grated lemon rind
• 2 tablespoons fresh lemon juice
• 2 teaspoons dried oregano
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon dried rosemary, crushed
• 1 1/2 pounds skinless, boneless chicken breast halves, cut into 1-inch pieces
• 1 large red onion, cut into 8 wedges
• 1 large green bell pepper, cut into 1 1/2-inch pieces
• Cooking spray