Ziti al horno con verduras asadas

Ingredients

• 1 box Banza Ziti
• 1 yellow onion, diced
• 2 cloves garlic, finely chopped
• 1 zucchini, cut into ¼” pieces
• ½ tsp crushed red pepper flakes
• 48oz marinara sauce
• 3 cups low moisture mozzarella cheese, shredded, divided
• 4oz fresh mozzarella, torn into .25” pieces
• Basil, for garnish