Herbed Chicken and Squash

Name: Herbed Chicken and Squash
Ingredients: 4 bone-in, skinless chicken breasts (about 2 1/2 pounds); 2 tablespoons chopped fresh rosemary, divided, plus 4 sprigs for garnish; 1 teaspoon salt, divided; 1/2 teaspoon freshly ground black pepper, divided; 1 pound peeled, seeded and cubed butternut squash; 2 teaspoons canola or olive oil, divided; 3/4 pound cipollini or sweet onions, halved if large; 3 teaspoons balsamic vinegar, divided; Vegetable oil cooking spray; 2 tablespoons apricot preserves; 2 teaspoons Dijon mustard; 2 teaspoons chopped ginger; 1 clove garlic, chopped