9-12 whole wheat lasagna noodle sheets (preferably no-boil)

1/2 medium butternut squash, peeled and cubed (about 2 cups cubed)

2 medium sweet potatoes, peeled and cubed (about 1 1/2 cups cubed)

12 ounces mascarpone cheese, at room temperature

3 tablespoons unsalted butter

1 shallot, thinly sliced

3 cloves of garlic, minced or pressed

1 1/2 cups freshly grated parmesan cheese

1/2 cup freshly grated mozzarella cheese

1 teaspoon salt

1 teaspoon pepper

1/4 teaspoon nutmeg

a bunch of sage leaves

olive oil for drizzling