Grilled Chicken Salad with Fresh Blueberries, Pecans and Honey-Poppy Vinaigrette - Blueberries

Ingredients

• 2 skinless, boneless chicken breasts, 8 ounces each
• 1 clove garlic, minced
• 2 tablespoons poppy seeds
• 6 ounces arugula
• 6 ounces spinach
• 2 cups fresh blueberries
• 1/2 cup crumbled blue cheese or feta
• 1/2 teaspoon salt, divided
• 1/2 teaspoon ground black pepper, divided
• 1 cup pecans
• 1/2 cup balsamic vinegar
• 1/2 cup white balsamic vinegar
• 1/4 cup honey
• 2 tablespoons Dijon mustard
• 1/2 cup extra-virgin olive oil