½tspred pepper flakes for heat, crispy sage leaves for garnish (optional)
Instructions
Roast the Squash.Preheat oven to 400°F (200°C). Toss squash cubes with olive oil, garlic, thyme, sage, salt, and pepper. Spread on a baking sheet and roast for 25–30 minutes, until soft and caramelized. Mash lightly with a fork (leave a few chunks for texture).
Prepare the Cheese Mixture. In a bowl, mix ricotta, egg, ½ cup mozzarella, ¼ cup Parmesan, salt, and pepper.
Assemble the Lasagna. Spread a thin layer of béchamel on the bottom of a 9×13-inch baking dish. Add noodles, a layer of mashed squash, dollops of ricotta mixture, a drizzle of béchamel, and a sprinkle of mozzarella. Repeat layers (about 3 total), finishing with noodles topped with béchamel, mozzarella, and remaining Parmesan.
Bake. Cover with foil and bake at 375°F (190°C) for 25 minutes. Remove foil and bake another 15–20 minutes until golden and bubbling. Let rest for 10 minutes before slicing.
Serve. Garnish with crispy sage leaves or extra Parmesan.