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White Sauce Zucchini & Spinach Lasagna


  • Author: Sara McKenney
  • Total Time: 1 hour 15 minutes
  • Yield: 6-8 servings

Description

Looking for your next go-to comfort meal that’s also veggie-packed and crowd-pleasing? This White Sauce Zucchini & Spinach Lasagna is a deliciously creamy and satisfying twist on the classic Italian favorite. With layers of tender zucchini, sautéed spinach, silky béchamel, and gooey cheese, it’s a vegetarian lasagna that offers everything you love—without the heaviness of red sauce. Perfect for those seeking quick dinner ideas, healthy comfort food, or impressive make-ahead dinner recipes. Whether you’re meal prepping or entertaining, this easy recipe is a keeper. Expect rich flavor, beautiful texture, and a dish that delivers on both taste and nutrition.


Ingredients

White Sauce (Béchamel):

  • 3 tbsp unsalted butter
  • 3 tbsp all-purpose flour
  • 3 cups warm whole milk
  • 1/2 tsp salt
  • 1/4 tsp ground nutmeg
  • Black pepper to taste
  • 1/3 cup grated Parmesan (optional)

Filling:

  • 2 medium zucchinis, sliced lengthwise
  • 4 cups fresh spinach (or 1 pkg frozen, thawed & drained)
  • 1 1/2 cups ricotta cheese
  • 1 large egg
  • 1 cup shredded mozzarella
  • 1/2 cup grated Parmesan
  • 1 garlic clove, minced (optional)
  • Salt & pepper

Assembly:

  • 9–12 lasagna noodles (cooked or no-boil)
  • Extra mozzarella and Parmesan
  • Fresh basil leaves for garnish
  • Optional dried Italian herbs

Instructions

  1. Make Béchamel: Melt butter, whisk in flour. Cook 2 mins. Gradually whisk in milk, season, and simmer until thickened. Stir in Parmesan (optional).
  2. Prep Veggies: Salt zucchini slices, let rest 15 mins, pat dry. Sauté spinach with garlic, drain and chop.
  3. Mix Filling: Combine ricotta, egg, spinach, half the Parmesan, salt, and pepper.
  4. Cook Noodles (if needed): Boil until al dente. Lay flat to cool.
  5. Assemble: Layer béchamel, noodles, ricotta mix, zucchini, and cheese. Repeat. Finish with noodles, white sauce, and cheese.
  6. Bake: Cover with foil, bake at 375°F for 25–30 mins. Uncover and bake another 10–15 mins until golden. Rest 10 mins before slicing.
  • Prep Time: 30 minutes
  • Cook Time: 45 minutes