1 tablespoon vegetable oil
4 skinless, boneless chicken breast halves
1 cup Swanson(r) Chicken Stock
2 tablespoons minced garlic
1/2 teaspoon dried rosemary leaves, crushed
1/2 teaspoon dried thyme leaves, crushed
1/4 teaspoon ground black pepper
2 large large sweet potatoes, cut into 1/2-inch pieces
2 cups fresh or frozen whole green beans