Low FODMAP Sheet Pan Pumpkin Mac and Cheese - FODMAP Everyday

Ingredients

• 1- pound (455 g) low FODMAP gluten-free pasta such as elbows, ziti, penne, small shells or cavatappi, (such as Jovial)
• 6- tablespoons (85 g) unsalted butter, (cut into pieces)
• 1- pound (455 g) shredded mild or medium cheddar, (divided)
• 1 ¼ cups (300 ml) lactose-free whole milk, (at room temperature)
• 1 ¼ cups (300 g) canned pumpkin purée, (such as Libby’s)
• 4- ounces (115 g) grated Pecorino Romano
• Kosher salt
• Freshly ground black pepper
• 1 cup (60 g) low FODMAP gluten-free panko, (such as Ian’s brand)
• ½ cup (59 g) raw shelled pepitas ((pumpkin seeds))