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4.37 from 11 votes

Spinach Mushroom Lasagna

A magnificent vegetarian lasagna, creamy and cheesy!! Just need to try it to begin loving it! Makes a perfect side dish for the holidays.
Prep Time50 minutes
Cook Time1 hour
Inactive Time10 minutes
Total Time2 hours
Course: Dinner
Cuisine: Italian
Keyword: Baked pasta, Dinner, lasagna
Servings: 8 Servings
Calories: 680kcal
Author: Tara Noland

Ingredients

  • 20 oz. package fresh spinach tough stems removed and washed
  • 5 Tbsp. unsalted butter
  • 1/4 cup shallots minced
  • 2 tsp. minced garlic
  • 4-5 large portobello mushrooms stems removed, sliced and then cut in half
  • 3/4 tsp. salt
  • 1/2 tsp. freshly ground pepper
  • 1/4 cup flour
  • 4 cups whole milk
  • 1/8 tsp. freshly grated nutmeg
  • 2 1/2 cup Parmesan grated
  • 15 oz. fresh ricotta
  • 18 slices provolone thinly sliced
  • 1 1/2 cups mozzarella
  • 16 lasagna noodles cooked al dente

Instructions

  • Bring a large pot of salted water to a boil. Cook the spinach for 2-3 min., stirring partway through to make sure it evenly cooks. Drain in a fine-mesh sieve. Once it is cool, squeeze it out with your hands, getting out as much as possible. Finely chop and set aside.
  • Meanwhile, in a large skillet over medium-high heat, melt the 1 Tbsp. butter and add the shallots and garlic; stir for 1 min. Add the mushrooms and a 1/4 tsp. salt and pepper. Cook, stirring until the mushrooms have let off their liquid, about 5 min. Remove from heat and set aside to cool.
  • In a large saucepan, melt the remaining 4 Tbsp. butter over medium heat. Add the flour and let cook for 2 min., stirring with a whisk. Slowly add in the milk, whisking constantly. Let the mixture come up to a simmer until it is thickened, whisking often. Add 1/2 tsp. salt, 1/4 tsp. black pepper, nutmeg, and 1 cup of Parmesan, now stirring with a wooden spoon for about 2 min. until thickened. Remove from heat.
  • In a medium bowl, combine the ricotta and the mozzarella with a 1/4 cup of the sauce.
  • Preheat oven to 350F. Spray a 9x13" pan with cooking spray. Spoon 1/2 cup of the sauce into the bottom of the pan.
  • Divide the mushrooms and spinach into four equal parts and sprinkle 1/4 of the mushrooms and spinach over the sauce. Next, arrange a layer of 4 noodles side by side.
  • Then spread a layer of the sauce over the noodles using a little less than 1/2 a cup. Top the sauce with 1/4 mushrooms and spinach and a 1/3 of the ricotta mixture and 6 sliced provolone.
  • Repeat these layers twice more, ending with the noodles. Use the rest of the sauce on top of the lasagna noodles and sprinkle with the remaining 1 1/2 cups of Parmesan.
  • Cover tightly with aluminum foil (you can refrigerate the lasagna now if needed). Bake in the oven for 30 min. Remove the foil and bake for another 10-15 min., until golden brown and bubbling. You may want to run it under a broiler for a minute.
  • Let rest for 10-15 min. before serving. Serve hot!!

Video

Notes

See the post for more information, photos and tips. 

Nutrition

Serving: 1 | Calories: 680kcal | Carbohydrates: 46g | Protein: 40g | Fat: 38g | Saturated Fat: 22g | Polyunsaturated Fat: 12g | Cholesterol: 108mg | Sodium: 1306mg | Fiber: 4g | Sugar: 7g