Go Back
+ servings

Chicken, Mushroom, and Spinach Lasagna

This chicken, mushroom, and spinach lasagna with a cheesy white sauce is just the twist on the classic you've been looking for.
Chicken, mushroom, and spinach lasagna in a cheesy white sauce from completelydelicious.com
Print Recipe
5 from 1 vote


  • 4 tablespoons butter (56 grams), divided
  • 8 ounces mushrooms (227 grams), sliced
  • Salt and pepper , to taste
  • 8 ounces spinach (1 medium bunch)
  • 2 cloves garlic , minced
  • 2 cups shredded cooked chicken (300 grams)
  • 2 tablespoons all-purpose flour
  • 2 cups milk (500 ml)
  • 15 oz whole milk ricotta cheese (425 grams)
  • 1 cup shredded Parmesan cheese (100 grams), divided
  • 1 teaspoon coarse salt
  • 1/2 teaspoon ground black pepper
  • 1/2 teaspoon freshly grated nutmeg
  • 8 ounces lasagna noodles (227 grams), I used no-boil, oven-ready
  • 8 ounces mozzarella cheese (227 grams), shredded
  • Chopped basil ,for garnish


  • Preheat oven to 350 degrees F. Grease a 9x13-inch or similar casserole dish.
  • In a large skillet melt 2 tablespoons of the butter over medium heat. Add mushrooms and season with salt and pepper. Cook until softened, about 5 minutes. Add spinach and garlic and continue to cook another 1-2 minutes, stirring frequently, until spinach is wilted. Transfer mixture to a bowl and add cooked chicken.
  • Return skillet to heat and melt the final 2 tablespoons of butter. Add flour and stir until combined. Pour in milk and whisk constantly to incorporate. Bring to a boil and cook until thickened.
  • Reduce heat to low and stir in ricotta cheese, 1/2 cup of parmesan cheese, a heavy pinch of salt and pepper, and nutmeg. Stir until smooth.
  • Spread a spoonful of sauce onto bottom of casserole dish. Cover bottom with lasagna noodles, gently breaking them to fit as necessary. Spoon more sauce over noodles, followed by 1/3 of chicken mushroom mixture, and 1/4 of of mozzarella cheese. Repeat two more times. Top final layer with the rest of the sauce, mozzarella cheese, and final 1/2 cup of parmesan cheese.
  • Cover with foil and bake for 35 minutes. Remove foil and bake uncovered for 10-15 minutes until cheese is lightly browned.
  • Let sit for about 15 minutes, then serve and enjoy!
  • You can used frozen spinach. Thaw and squeeze out all excess moisture.
  • I like to use no-boil, oven-ready lasagna noodles to cut down on prep work, but you can also use traditional lasagna noodles. Prepare according to package instructions.
  • This lasagna can be made ahead: Assemble and cover and chill in the fridge for up to 24 hours before baking. Or assemble, double-wrap and freeze for a month or more. Bake from frozen, adding approximately 15 minutes to baking time.


Calories: 499kcal, Carbohydrates: 31g, Protein: 33g, Fat: 27g, Saturated Fat: 16g, Cholesterol: 105mg, Sodium: 842mg, Potassium: 561mg, Fiber: 2g, Sugar: 5g, Vitamin A: 3472IU, Vitamin C: 9mg, Calcium: 511mg, Iron: 2mg
Have you tried this recipe?I’d love to hear about it! Leave a review below or take a photo and tag it on Instagram @completelydelicious with #completelydelicious.