Slice off the top and bottom, slice it in half lengthwise, scoop out the seeds, and coat with olive oil, salt, and pepper. Place the squash flesh-side down and roast at 375 for 45 minutes, until a fork can pierce it with little resistance. Scoop out the flesh and measure 1 ½ cups to reserve for the sauce. You also need 150 grams from the homemade pasta.
Season the ground beef with the salt, Italian seasoning, sage, fennel, black pepper, maple syrup, red wine vinegar, and garlic. Brown over medium high heat, then remove from the pot and set aside.
Make The Sauce
Add the butter and olive oil to the same pot. Sauté the onion until softened, then add the garlic, oregano, and red pepper flakes. Stir in the tomatoes, roasted butternut squash, and chicken stock. Simmer for about 30 minutes.
Blend the tomato and butternut squash sauce until smooth. Blend in the heavy cream and vodka, if using. Return the beef to the sauce and simmer for 10 minutes.
Make The Becahmel
In a medium saucepan, melt the butter over medium heat. Sprinkle in the flour and whisk until combined and a thick paste forms. Slowly add the milk in increments, whisking constantly to prevent any lumps. Once all of the milk has been added, season with nutmeg, pepper, and salt. Bring to a gentle simmer and cook for 10–15 minutes, whisking occasionally, until the sauce has thickened slightly. Keep in mind that it will continue to thicken as it cools.
Build Your Lasaga
Spoon a thin layer of the meat sauce over the bottom of the baking dish. Top with a layer of thin lasagna noodles, followed by more meat sauce. Ladle some of the béchamel over the meat sauce and spread it evenly. Repeat the layers of pasta, meat sauce, and béchamel until you have 3 layers of pasta.You’ll have some extra meat sauce and pasta left over, so freeze them for later—or just make another lasagna for the freezer while you’re at it!For the final layer, top the pasta with béchamel, spreading it evenly to cover. Finish with a generous layer of shredded cheese.
Bake
Cover with foil and bake at 375 for 30 minutes. Remove the foil and bake for 15 more minutes until golden and bubbly. I like to broil for the last few minuts to get some good color.