Preheat oven to 375°F.
In a large bowl, combine the pureed roasted butternut squash, brown sugar, cinnamon, allspice, roasted hazelnuts, salt and pepper. Set aside.
In a medium saucepan, melt butter with the garlic and sage and cook for 2 minutes. Whisk in flour and cook 2 additional minutes. Slowly add the hot milk until you get a creamy sauce, season with nutmeg, salt and pepper.
In a shallow nonstick pan, spread a thin layer of the sauce on the bottom of the pan. Top with a single layer of noodles, then more sauce. Spread 1/3 of the butternut squash mixture over the pasta, then 1/3 of the spinach mixture. Repeat layers 2 more times. Last layer is pasta covered with sauce then topped with BelGioioso Fresh Mozzarella slices and sprinkled with 4 oz. BelGioioso Parmesan.
Bake covered for 30 minutes. Uncover and bake until golden and bubbling, about 15 minutes more.