Butternut Squash Lasagna
- 1 (1 1/2 to 2-pound) butternut squash, peeled, seeded, and cut into 1-inch cubes
- Salt and freshly ground black pepper
- 1 T olive oil
- 1/4 c ricotta cheese
- 1/4 cup butter
- 1/4 cup all-purpose flour
- 3 1/2 cups whole milk
- Pinch nutmeg
- 3/4 cup (lightly packed) fresh basil leaves
- 12 no-boil lasagna noodles
- 2 1/2 cups shredded whole-milk mozzarella cheese
- 1/3 cup grated Parmesan
Heat oven to 400°. Toss squash with oil, salt, and pepper in a large bowl. Transfer to a baking sheet and roast in the oven 25-35 minutes until soft and beginning to brown. Remove and cool slightly. Lower oven to 375°.
Meanwhile, melt butter in a medium pot over medium-high heat. Whisk in flour and cook 1 minute. Gradually whisk in milk. Bring to a boil, lower heat, and simmer 5 minutes until thickened, whisking frequently. Stir in nutmeg, and salt and pepper to taste. Remove from heat and cool slightly.
Add the basil to the workbowl of a food processor and pulse 2-3 times. Add half of the slightly cooled sauce through the feed tube with the motor running until well blended. Scrape the processor bowl well and return to the pot. (You can also use a blender for this step.)
Add the slightly cooled squash and ricotta to the processor bowl and puree.
Butter a 9x12" baking dish. Spread 3/4 c sauce over bottom of pan. Lay 3 lasagna noodles in the bottom without touching. Spread 1/3 of pumpkin puree over noodles, then sprinkle 1/2 c mozzarella over top. Repeat 3 times, ending with a layer of pasta and remaining mozzarella and sauce on top. Sprinkle with Parmesan. Cover tightly with foil* and bake 40 minutes. Remove foil and bake 10-15 minutes more, until cheese is melted and bubbly. Remove from oven and let sit 15 minutes.
*The lasagna can be frozen at this point. Thaw completely in refrigerator, then bake 50-60 minutes covered, 10-15 minutes uncovered.