Root Vegetable Lasagna


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I have been in a state of distraction lately. My usual organization when it comes to planning our meals has been totally out to lunch (ha ha!) these past few weeks.  Of course, the flooding and stocking up on boring things like canned vegetables has consumed a lot of time.  Then there was this book.  It was so good that I seriously could.not.stop.  Then there’s the fall television line-up.  Thanks to Itunes, in a matter of weeks we have gone from television no-man’s-land to an overstimulating list of new episodes of The Office and Top Chef (loving the new season in Texas – yeeehaw).

This week I’ve got it together though, because I finally audited my ever-growing list of recipes and pulled out some serious winners. There will be delicious, low-maintenance things cooking at our house all weekend.  But I also got it together and made a double recipes of this amazing fall-inspired lasagna.  Not only did we have one for dinner, but we’ve got one on hold in the freezer.

The fall-craving part of me is slowly caving to the temptation to curl up on the couch and spend the afternoon reading while dinner magically winds its delicious web around our cozy apartment.  This is one of those dinners.  It takes a bit of chopping up front, but the sweet smell of roasting fall vegetables and later, the richness of the lasagna are thoroughly worth the effort.

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4 from 3 votes

Root Vegetable Lasagna

This vegetarian lasagna full of roasted root vegetables is perfect for a winter night, and is surprisingly light.
Prep: 45 minutes
Cook: 1 hour
Total: 1 hour 45 minutes
Servings: 6


  • 6 cups (1/2-inch) cubed peeled butternut squash (about 2 1/2 pounds)
  • 2 1/4 cups (1/2-inch) cubed peeled sweet potato (about 1 pound)
  • 2 cups coarsely chopped onion, divided
  • 1 tablespoon olive oil
  • Cooking spray
  • 4 cups 1% low-fat milk
  • 1/8 teaspoon ground nutmeg
  • 1/8 teaspoon ground cinnamon
  • 1 bay leaf
  • 1 1/2 ounces all-purpose flour (about 1/3 cup)
  • 1/2 teaspoon salt
  • 1/4 teaspoon freshly ground black pepper
  • 1 1/4 cups (5 ounces) grated Parmigiano-Reggiano cheese
  • 9 packaged no-boil lasagna noodles
  • 1 1/2 cups (6 ounces) shredded part-skim mozzarella cheese


  • Preheat oven to 450°.
  • Combine squash, potato, 1 cup chopped onion, and oil in a roasting pan coated with cooking spray, tossing to coat vegetables. Bake at 450° for 30 minutes or until vegetables are tender, stirring once; set aside.
  • Combine remaining 1 cup onion, milk, nutmeg, cinnamon, and bay leaf in a medium saucepan over medium-high heat; bring to a simmer. Remove from heat; let stand 15 minutes. Strain milk mixture through a fine sieve over a bowl; discard solids. Wipe out the inside of the pan well with paper towels. Return milk mixture to pan. Weigh or lightly spoon flour into a dry measuring cup; level with a knife. Add flour, salt, and pepper to milk mixture, stirring well with a whisk. Cook over medium heat 10 minutes or until thick, stirring frequently. Remove from heat; stir in Parmigiano-Reggiano cheese.
  • Preheat oven to 375°.
  • Spread 1/2 cup milk mixture in bottom of a 13 x 9–inch baking dish coated with cooking spray. Arrange 3 noodles over milk mixture; top with half of squash mixture, 1/2 cup mozzarella, and 1 cup milk mixture. Repeat layer with noodles, squash mixture, mozzarella, and milk mixture. Top with remaining 3 noodles. Spread remaining milk mixture over noodles, and sprinkle with remaining 1/2 cup mozzarella. Cover with foil coated with cooking spray.
  • Bake at 375° for 30 minutes. Uncover and bake an additional 20 minutes. Let stand 10 minutes before serving.


Note: Although I miss butternut squash so much that it seems to be creeping into my dreams, there is no butternut squash here in Thailand. The combination of butternut squash and sweet potato is a winner, so I’ve kept the recipe in its original form, although any combination of roasted fall vegetables will work. I used a combination of roasted Kobucha squash,white sweet potato, carrots, and cauliflower.
Recipe from Cooking Light.

Nutrition information is automatically calculated, so should only be used as an approximation.

Author: Jess Smith via Inquiring Chef
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About Jess Smith

Jess is the recipe creator and photographer at She spent nearly a decade as the Chief Recipe Developer for the award-winning meal planning app Cook Smarts. Her colorful, healthyish recipes have been featured in popular online publications including Parade, Hallmark, and HuffPost.

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  1. Ooh I love a recipe that cooks while I read. I just got a new pasta roller so this would be great to try out my homemade lasagna sheets.