Recipes Seasonal Recipes Fall Recipes Butternut Squash Recipes Vegetable Handkerchiefs By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on May 16, 2017 Print Share Share Tweet Pin Email Servings: 6 Sheets of spinach-flavored handkerchief pasta enfold low-fat ricotta, broccoli rabe, butternut squash, and shiitake and cremini mushrooms in this variation of traditional lasagna. Ingredients 1 bunch broccoli rabe ½ teaspoon salt ½ teaspoon freshly ground pepper ¾ cup low-fat ricotta, at room temperature Zest of 1 lemon 1 butternut squash (about 2 pounds), peeled, halved lengthwise, and seeded 2 teaspoons olive oil ¾ pound shiitake mushrooms, stems removed, cut into ¼-inch slices ¾ pound cremini mushrooms, stems removed, cut into ½-inch wedges 1 tablespoon unsalted butter, softened 1 tablespoon all-purpose flour 2 tablespoons chopped fresh tarragon leaves 6 fresh 5-by-7-inch pasta sheets Olive-oil cooking spray Directions Heat oven to 450 degrees. Bring a large stockpot of water to a boil. Trim off 2 to 3 inches of the broccoli rabe, and discard. Place in boiling water; cook 1 to 2 minutes, until bright green and slightly tender. Using a slotted spoon, remove broccoli rabe; transfer to a colander. Place under running cold water until cool; drain. Combine salt and pepper in a small bowl. In another bowl, place ricotta, lemon zest, and a pinch of salt-and-pepper mixture; stir to combine. Set aside. Coat a baking pan with olive-oil cooking spray, and arrange broccoli rabe in a single layer. Sprinkle with a pinch of the salt-and-pepper mixture; coat again with cooking spray. Cut butternut squash crosswise into 1/2-inch-thick slices, and place in a large bowl. Add 1 teaspoon olive oil, sprinkle with a pinch of the salt-and-pepper mixture, and toss to combine. Place on a second baking pan; roast until tender and lightly browned, about 35 minutes. After 15 minutes, place broccoli rabe in oven; cook for remaining 20 minutes. In a low-sided 6-quart saucepan, heat remaining teaspoon olive oil over medium heat. Add mushrooms; cook, stirring, until browned and letting off some liquid, at least 5 minutes. Add 2 cups water and remaining salt and pepper; cook until mushrooms are soft and liquid is reduced by half, 10 to 12 minutes. Combine butter and flour in a small bowl; stir into mushroom mixture. Cook until sauce is slightly thickened, about 2 minutes. Stir in tarragon. Boil a stockpot of water. Using a fluted pastry wheel, cut pasta sheets in half. Place pasta sheets in boiling water; cook until tender, about 1 minute. Using a slotted spoon, remove from water; place a half sheet on each of 6 plates. Arrange squash, broccoli rabe, and ricotta mixture on each; top with remaining pasta and mushroom sauce. Serve. Cook's Notes Keep vegetables warm in the oven if necessary so all the ingredients are hot when assembled. We used fresh spinach pasta sheets, but any flavor may be substituted. Lasagna noodles may also be used; just be sure to adjust the cooking time. Print