Bonicelli Cooking Club
RecipesCoursesIn-Person ClassesPodcastNewsletterShopAboutContact
Recipes/Butternut Squash and Spinach Lasagna
Butternut Squash and Spinach Lasagna
AmericanItalian

Butternut Squash and Spinach Lasagna

Butternut Squash and Spinach Lasagna is a wonderful vegetarian and gluten-free option for a hearty main-dish lasagna.

By Chef Laura Bonicelli

gruyereprovolonericottatarragon

Prep Time

20 min

Cook Time

1 hr

Total Time

1 hr 20 min

Servings

12 servings

Ingredients

  • 1 tablespoonextra-virgin olive oil
  • 3 cupsfinely diced red onion
  • 4 large garlic cloves (minced)
  • 1 poundbaby spinach
  • 8 ouncesprovolone cheese (cut into chunks)
  • 2 cupsplain Greek yogurt
  • 3 tablespoonsflour
  • 2 teaspoonsKosher salt
  • 4 large eggs
  • 2 cupsfresh ricotta
  • 2 tablespoonsminced fresh tarragon
  • 3/4 teaspoonKosher salt
  • freshly ground black pepper to taste
  • 1 3 poundbutternut squash
  • 4 ouncesGruyere (Emmentaler, or fontina cheese -- grated (1 cup))

Nutrition Facts

Per Serving (serves 12 servings)

Calories327
Total Fat16g
Cholesterol101mg
Sodium835mg
Total Carbohydrates27g
Dietary Fiber5g
Sugars7g
Protein21g

* Nutritional information is estimated and may vary based on specific ingredients and preparation methods.

Instructions

  1. 1

    Preheat the oven to 350º F. Coat a 9X13-inch baking dish with cooking spray.

  2. 2

    Heat the oil in a Dutch oven over medium-high heat. Add onion and garlic. Saute for . Add the spinach and saute until wilted. Remove from heat to cool.

  3. 3

    Puree the provolone and yogurt in a food processor fitted with a metal blade. Add in flour, Kosher salt, and eggs. Blend for .

  4. 4

    In a small bowl, combine the ricotta, tarragon, salt, and pepper.

  5. 5

    Peel the neck of the squash and cut into 24 slices (1/8-inch thick). Place the slices in a microwavable dish and cover with plastic wrap. Microwave for until slices are almost tender.

  6. 6

    Spread half of the yogurt mixture in the bottom of the baking dish.

  7. 7

    Layer in half of the squash, overlapping pieces. Spread the spinach mixture over the squash, and the ricotta mixture over the spinach.

  8. 8

    Top with the rest of the squash, layering as before, and end with the yogurt mixture. Top the entire lasagna with Gruyere.

  9. 9

    Cover the dish with foil. Bake at 350º F for , remove foil and bake an additional to brown the top.

  10. 10

    Remove from the oven. Cover loosely with foil and let stand for before serving.

Chef's Notes

NOTES : To freeze: Double wrap in foil and freeze. Bake frozen. Increase covered baking time by 30 minutes. Finish as directed.

Bonicelli Cooking Club

Minneapolis, Minnesota

Explore

RecipesCoursesIn-Person ClassesPodcastNewsletterShop

Connect

About Chef LauraContact

Legal

Privacy PolicyTerms of ServiceCookie PolicyRefund Policy

Newsletter

Recipes, tips & class updates in your inbox.

Visit Newsletter

© 2026 Bonicelli Cooking Club. All rights reserved.