1 (14.5 ounce) can (2 cups) low-sodium chicken broth
1 (16 ounce) jar (about 1 3/4 cups) Alfredo sauce
2 teaspoons minced fresh garlic
1/2 teaspoon salt
1 lb. raw boneless, skinless chicken breasts, diced
2 pkg. (10 ounces each) frozen chopped spinach, thawed, with all of the liquid squeezed out*
1/2 cup chopped or torn fresh basil leaves, divided
1 (14.5 ounce) can petite-diced tomatoes (NOT drained)
12 ounces (about 3 3/4 cups uncooked) uncooked penne pasta
4 ounces (about 1 cup) shredded mozzarella cheese, divided
1/4 cup grated Parmesan cheese