I first found this recipe on allrecipes.com, where I find a lot of my recipes. I modified it some. It's by far the best lasagna I've ever had, and anyone I've served it to has agreed. If you're not making it for a lot of people then I would recommend making it in two small square dishes and freezing one for later use.
2 cups diced, marinated squash
1 eggplant, sliced into 1/2 inch rounds
5 tomatoes
1 pint ricotta cheese
9 oz crumbled feta cheese
2/3 cup pesto
2 eggs, beaten
1 can tomato sauce
no-bake pasta sheets
1 1/3 cups shredded mozzarella cheese
1 cup grated parmesan cheese
Preheat oven to 450 degrees
Cut squash into bite sized pieces put in ziploc bag with olive oil, paprika, salt, red pepper. Shake until coated, cook for 20 minutes, turning after 10 minutes. Meanwhile, grill eggplant on a charcoal grill or fry in a skillet, turning once, until charred and tender, 10 to 15 minutes. Halve tomatoes and place on baking sheet in oven for last 15 minutes of pumpkin time; cook until tender and wrinkly.
In a medium bowl, stir together ricotta, feta, pesto, eggs, salt and pepper until well mixed. Fold roasted squash into ricotta mixture.
Spoon half of the tomato sauce into a 9x13 baking dish. Lay two pasta sheets over the sauce. Arrange a single layer of eggplant slices over pasta and top with half the ricotta mixture. Cover with two more pasta sheets. Arrange the roasted tomatoes evenly over the sheets and spoon the remaining half the ricotta mixture over the tomatoes. Sprinkle with half the mozzarella. Top with remaining two sheets of pasta. Pour remaining tomato sauce over all and sprinkle with remaining mozzarella and Parmesan.