Bring a pot of water to boil. Boil lasagna noodles according to package directions, toss lightly in oil and set aside until ready to use.
Spread cubed butternut squash on a rimmed sheet pan, drizzle with olive oil, sprinkle with salt & pepper, toss until well coated. Roast in the oven for 30 minutes, stirring once halfway. Set aside.
In a large bowl combine all sausage ingredients. Heat a large skillet over medium-high heat, drizzle with olive oil. When skillet is hot add sausage mixture, cook until browned and cooked through. Using a slotted spoon transfer sausage to a plate, keeping the dripping in the pan.
Return skillet with the sausage drippings to stove over medium-high heat. Add chopped onions and garlic, sauté until they start to get soft, about 5 mins.
Add diced apple to skillet, sprinkle with salt, cook an additional 5 minutes. Add a splash of white wine to deglaze the pan, scraping up all the brown bits at the bottom of the skillet. Add the squash and chopped hazlenuts. Sauté until the squash is lightly browned, 1 to 2 more minutes. Add cooked sausage until well combined, set aside.
In a large bowl combine ricotta cheese, ½ cup shredded mozzarella and ½ cup shaved parmesan, stir until well combined and set aside.
Melt the butter in a heavy medium-size saucepan over medium heat. Add garlic and sage, sauté until fragrant, about 30 seconds.
Add the flour and whisk for 1 minute. Splash with white wine and gradually whisk in the milk. Bring to a boil over medium-high heat. Reduce the heat to medium and simmer until the sauce thickens slightly, whisking often, about 5 minutes.
Whisk in the nutmeg and parmesan, continue to whisk until smooth. Season the sauce with salt and pepper, to taste.
Spray a large 9 x 14 casserole dish with non-stick spray, spread a very thin layer of sauce on the bottom of the dish, set aside.
Lay lasagna noodles flat on a clean work surface. Reserve about ¼ cup of sauce for topping. Spread and layer cheese mixture, followed by remaining sauce and filling on each of the noodles. Carefully roll the noodles and place in prepared dish, seam side down.
Top lasagnas with cream sauce, ½ cup shredded mozzarella and ½ cup shaved parmesan. Bake in the oven cover at 350 degrees for 15 min, remove cover, back another 20 minutes. To brown the cheese put under the Lo broiler for a few minutes, be sure to keep an eye on it.
Butternut and sausage filling can be made a day ahead.
Assemble and freeze. Bake at 350 degrees covered for 45 minutes, remove cover bake an additional 15 minutes or until hot and bubbly. Broil on Lo to brown cheese.
Lasagna rolls can be frozen in small aluminum loaf pans for individual servings. Bake at 350 covered for 30 minutes, remove cover and bake an additional 15 minutes or until hot and bubbly. Broil on Low to brown cheese.
Recipe by The Noshery at http://thenoshery.com/butternut-sausage-hash-rustic-lasagna-creamy-sage-sauce/