Creamy Rigatoni Florentine
1 (10 ounce) package fresh spinach, chopped 1 (16 ounce) package rigatoni pasta 1 (26 ounce) jar spaghetti sauce 1 cup shredded mozzarella cheese 1 pint half-and-half 1 tablespoon shredded Parmesan cheese, or mor… 1 teaspoon Italian seasoning, or to taste 2 pounds boneless chicken, cubed 2 tablespoons olive oil 3 cloves garlic, chopped 8 leaves fresh basil, or to taste ¼ cup sliced fresh mushrooms, or more to tast…