Butternut Lasagna

Directions

1. Preheat oven to 400°. In a large bowl, combine squash, oil, 1/2 teaspoon salt, nutmeg and pepper. Transfer to two greased 15x10x1-in. baking pans.
2. Roast 30-35 minutes or until tender, stirring occasionally; cool slightly. Process in batches in a food processor until pureed. Meanwhile, cook noodles according to package directions; drain.
3. Reduce oven setting to 375°. For sauce, in a small saucepan, melt butter. Stir in flour and remaining salt until smooth; gradually add milk and cream. Bring to a boil; cook and stir 1-2 minutes or until slightly thickened. Stir in 1 cup cheese and lemon zest until cheese is melted.
4. Spread 1 cup sauce into a greased 13x9-in. baking dish. Layer with four noodles, half of the squash mixture, 1-1/2 cups spinach and 1-1/2 cups sauce. Repeat layers. Top with remaining noodles and sauce.
5. Bake, covered, 45 minutes. Sprinkle with remaining cheese. Bake, uncovered, 10-15 minutes longer or until bubbly and cheese is melted. Let stand 10 minutes before serving.