Healthy Spinach Lasagna Recipe with Mushrooms

Healthy easy spinach lasagna recipe with fresh spinach, flavorful mushrooms, light tomato sauce, and cheeses. A delicious meatless lasagna. Jump to the full Spinach Lasagna Recipe or read on to see how we make it.

Healthy easy spinach lasagna recipe with fresh spinach, flavorful mushrooms, light tomato sauce, and cheeses.

This spinach lasagna is the one of the best things we ate lately, which is saying a lot since meat, sausage, and bacon are nowhere to be found. Instead, it’s vegetarian with lots of fresh spinach, mushrooms, a light tomato sauce and cheese. 

YOU MAY ALSO LIKE:  Try our Sausage and Beef Lasagna Recipe or this very popular Vegetable Lasagna with zucchini and roasted red peppers.

How We Make Our Healthy Spinach Lasagna

This spinach lasagna recipe is easy and thanks to no-boil noodles can be made quickly.

Easy spinach lasagna recipe with fresh spinach, flavorful mushrooms, light tomato sauce, and cheeses.

To keep things easy, we take advantage of no-boil lasagna noodles. We were skeptical at first, but after reading comments from other lasagna recipes praising them, we decided to give them a try. The results were great. Things went so much quicker and we actually found we preferred the lighter texture of the no-boil noodles to the more traditional boil-then-use variety.

When it comes to the spinach, we like using fresh. You could just as easily use thawed frozen spinach, though. We’ve included instructions in the recipe below.

Cooking the filling -- mushrooms, onions and spinach

Even though we’re calling this a spinach lasagna, one of my favorite parts is the mushrooms. Since this is a meatless lasagna, we wanted to make sure there was something that tastes meaty and rich. The mushrooms work perfectly for this.

Assembly

As I mentioned above, making the lasagna is pretty simple. We cook onions and mushrooms until lightly browned around the edges then add garlic and mounds of fresh spinach leaves. Once the spinach wilts down we layer the vegetables with lasagna noodles, marinara sauce and lots of cheeses.

After some time in the oven, the lasagna has just the right amount of sauce, lots of vegetables all with a layer of lightly browned and bubbling cheese on top. It’s seriously good.

Homemade Marinara Sauce RecipeYOU MAY ALSO LIKE This easy marinara sauce recipe (that we use for this spinach lasagna recipe), has just a few simple ingredients and takes less than an hour to make. Store up to a week in the refrigerator and up to 6 months in the freezer.

Make Ahead Tips: How to Make Lasagna in Advance

Lasagna is the perfect make-ahead meal. Here’s how to do it:

  • The sauce can be made in advance and should last in your refrigerator up to 3 days and in your freezer for about 3 months. We recommend using freezer-safe glass containers, or double layers of freezer bags to store sauces. To thaw, simply leave it overnight in the refrigerator.
  • Baked lasagna freezes well. Let it cool completely on a rack before freezing, and then wrap it very well with foil (we use two layers). Defrost the frozen lasagna overnight in the refrigerator and then bake at 400°F for about 1 hour.
  • Consider using no-boil noodles. We love using no-boil noodles to make lasagna — especially if we plan to make it ahead of time. The no-boil noodles don’t tend to become as soft or mushy after freezing or reheating compared to boiled noodles.

Recipe updated, originally posted February 2014. Since posting this in 2014, we have tweaked the recipe to be more clear. – Adam and Joanne

Healthy Spinach Lasagna Recipe with Mushrooms

  • PREP
  • COOK
  • TOTAL

Lots of fresh spinach, flavorful mushrooms, light tomato sauce and a variety of cheeses makes for a seriously delicious lasagna. This keeps incredibly well – it might even be better the next day. To keep things easy, we take advantage of no-boil lasagna noodles. While we were skeptical to use them at first, we’ve fallen in love with the ease and final texture of the noodles.

Makes 8 Servings

You Will Need

1 tablespoon olive oil

1 medium onion, finely diced

8 ounces cremini mushrooms, chopped (about 2 1/2 cups)

1 garlic clove, minced

1 pound fresh spinach leaves, rinsed

3/4 teaspoon kosher salt, or to taste

2 cups part-skim ricotta cheese, can substitute cottage cheese (about 1 15-ounce container)

2 large eggs, beaten

1/4 teaspoon freshly ground black pepper

3 cups marinara sauce, see our homemade marinara sauce recipe (about 1 24-ounce jar)

12 no-boil lasagna noodles or use regular lasagna noodles that have been cooked

3 ounces parmesan cheese, shredded (about 1 cup)

8 ounces part-skim mozzarella cheese, shredded (about 2 cups)

Directions

  • Make Filling
  • Heat oven to 350º F. Lightly oil a 13-inch by 9-inch baking dish.

    Heat olive oil in a large deep skillet over medium heat. Add onions and mushrooms and cook, stirring occasionally until onions become translucent, about 10 minutes.

    Add the garlic, spinach leaves and a 1/4 teaspoon of salt. Cook, stirring as needed, until the spinach is bright green and wilted. (Don’t worry about the amount of spinach, it may look like a lot now, but as it cooks, it wilts down considerably. Depending on the size of your skillet, you may want to add the spinach in batches).Spinach-Lasagna-Recipe-Step-1

    In a medium bowl, mix ricotta cheese, eggs, a 1/2 teaspoon of salt, and the pepper until well blended.

    • Assemble Lasagna
    • Spread 1 cup of marinara sauce over the bottom of the baking dish. Arrange three noodles lengthwise and side-by-side to cover the bottom.

      Spread half of the ricotta cheese mixture over the noodles. Sprinkle with a third of the parmesan cheese and a third of the mozzarella cheese. Add half of the spinach mixture and dollop about a 1/2 cup of marinara sauce over the spinach.

      Add a second layer of noodles then repeat with remaining cheese, spinach and another 1/2 cup of sauce. Finish with a third layer of noodles and top with remaining sauce, parmesan cheese and mozzarella cheese.Spinach-Lasagna-Recipe-Step-2

      • Bake Lasagna
      • Loosely cover lasagna with aluminum foil and bake 30 minutes, uncover then bake an additional 10 to 15 minutes until cheese is bubbly and browned around the edges. For a cheesy golden brown top, slide the lasagna uncovered, under the broiler for 1 to 2 minutes.

Adam and Joanne's Tips

  • Cremini mushrooms: You’ll find “baby bella” or cremini mushrooms sold next to white button mushrooms. They are usually a little more expensive, but are so worth it when it comes to flavor. If you can’t find them, consider chopping up a couple portobello mushrooms, use a combination of exotic mushrooms or use button mushrooms.
  • Fresh vs. Frozen Spinach: We really love using fresh spinach for this, but you could substitute with frozen. To do this, defrost one 10-ounce package of frozen spinach then squeeze it dry and use in our recipe above in place of the fresh leaves.
  • We use kosher salt. If you don’t have it on hand, keep this in mind: 1 teaspoon fine sea or table salt = about 1 1/4 teaspoons kosher salt.

If you make this recipe, snap a photo and hashtag it #inspiredtaste — We love to see your creations on Instagram and Facebook! Find us: @inspiredtaste

AUTHOR: Adam and Joanne Gallagher

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30 comments… Leave a Comment
  • Paul November 3, 2016, 8:40 pm

    This lasagna is awesome! One tip I have is to quickly strain your vegetable mixture before putting it in the lasagna. If you still find it too wet about half way through the cooking time take it out and use a turkey baster or spoon to remove excess liquid.

    Reply
  • Marilyn Switzer January 14, 2016, 12:19 am

    This recipe looks delicious. I would like to prepare this the day before I will be serving it. Would it be best to prepare it one day and cook it the following day or would it be better to cook it he same day it is prepared and reheat it the following day.

    Reply
    • Joanne May 19, 2016, 1:26 pm

      You can do either. Since I like getting things out of the way, I would bake the lasagna the day before then refrigerate it overnight.

      Reply
  • Sue December 26, 2015, 3:18 pm

    I made this last night for my Christmas birthday dinner. It was absolutely delicious. My husband and I enjoyed it immensely. Thanks for sharing this wonderful recipe, Adam and Joanne! Can I get some more of your tasty recipes?
    We give it 5 Stars!

    Reply
  • Melanie October 28, 2015, 1:18 pm

    Thank you, absolutely delicious. I added zucchini to the veggie mix. Do you use all 12 noodles? The pic shows three for each layer which would be nine total. I broke up two more and laid them on the top. It really doesn’t matter much on that I guess.

    Reply
  • Howie June 26, 2015, 3:43 am

    My daughter made it tonight for my birthday. We halved the amount of materials said on the recipe as we have only four people. Flavour and taste were ok but we found it was too watery and soggy

    Reply
    • Joanne August 10, 2015, 2:19 pm

      Hi Howie, We’re glad you tried our lasagna. The no-boil noodles should have kept the lasagna from being too watery. You could try adding less marinara next time or cooking it down a little. Hope that helps!

      Reply
  • Nadia March 3, 2015, 8:11 pm

    This is a good recipe. However, this makes so much of the ricotta mixture that I was able to do an extra layer (and still had a little left over) so I needed an extra 2 cups of pasta sauce. I prefer my lasagna a little more sauce-y anyhow, so I used more per layer than recommended. I think the no-boil noodles are great. Very tasty!

    Reply
  • Pam February 23, 2015, 12:17 pm

    Great recipe! It appears the instructions call for three layers of noodles (9 noodles) and the ingredients reference 12 noodles. The lasagna was delicious but I am wondering if I misread something. Thank you.

    Reply
    • Melanie November 27, 2015, 2:28 pm

      I also had noodles left over and it turned out perfect anyways. It’s kind of foolproof.

      Reply
  • Shaguna Dhall February 19, 2015, 1:06 pm

    Thank you so much for the detailed recipe. Made this today and it turned out perfect! I think I over cooked it for a few minutes though. But came out yummy.

    Reply
  • Kerry & Francis February 14, 2015, 8:24 pm

    We made this together tonight for Valentine’s Day dinner. It was an easy recipe to follow and we both thought the lasagna was very tasty! We will make this again for sure.

    Reply
  • Jenna February 8, 2015, 12:19 pm

    Fantastic recipe! Both my boyfriend (meat-eater) and I (veg) thought this was the best lasagna we’ve ever had. He hasn’t stopped raving about the flavor the mushrooms brought to the table. I’m very excited to check out the rest of your recipes!

    Reply
  • Craig February 6, 2015, 8:29 pm

    Made this tonight, great recipe.

    Reply
  • jacki January 19, 2015, 11:51 am

    My lasagna turned out dry, but my boyfriend said he likes his that way. Kids loved it!

    Reply
    • Adam March 2, 2015, 2:33 pm

      Sorry about that. You could try adding a little more sauce next time. Everyone has different tastes 🙂

      Reply
  • Toni December 16, 2014, 5:52 pm

    just made this, and it is the best lasagna I ever made.my daughter is vegetarian, so I made my first vegetarian lasagne, ever. people always loved my lasagna, but I will be making this from now on. Excellent recipe, made it exactly as given,thank you…we loved it!

    Reply
  • GB December 14, 2014, 8:24 pm

    Can this be recipe be assembled and frozen? Any tips on whether it can be baked at a later date after bring frozen?

    Reply
    • Adam March 2, 2015, 2:33 pm

      Hi there, you should be able to freeze the lasagna unbaked and baked. We usually freeze before baking then just bake from frozen. The bake time will be longer, but the lasagna should still taste great.

      Reply
  • Susan Guare November 16, 2014, 3:48 pm

    I want to make this for Christmas eve, and I’d like to prepare it early (I already have the fresh spinach, bought today from the farmers market) and freeze it. Any ideas on the success of this plan? Should I thaw it completely before baking it? Thanks.

    Reply
    • Joanne November 26, 2014, 2:57 pm

      Hi Susan, Thaw the spinach before adding to the lasagna. Also, you may want to consider squeezing the thawed spinach as well to remove excess water.

      Reply
  • Ila September 18, 2014, 10:20 pm

    I made this tonight and followed the recipe exactly. My husband and I agreed that it was the best spinach lasagna we have had – it was delicious! We liked the simplicity of the ingredients and it was easy to make. The favors were wonderful. We are looking forward to making this recipe for family and friends. Your pictures and detailed directions, notes, and tips were very helpful. Thank you for sharing.

    Reply
  • zarina August 24, 2014, 4:37 pm

    Thanks, trying tonight, what I can’t figure out is your 30 minute cook time, while the box of noodles I’m going with calls out a 60 minute time, do you think I should adjust the time to match the specific noodles I’m using?

    Reply
    • Joanne October 23, 2014, 12:25 pm

      We use no-boil noodles for this. If you are concerned, follow the directions on the package you have in your kitchen.

      Reply
  • Torrey April 23, 2014, 1:52 am

    This was delicious! I liked the simplicity of the recipe, it all came together pretty quick, and the no-cook noodles worked just fine. Except for extra garlic and cheese, I followed the recipe exactly.

    Reply
    • Joanne April 23, 2014, 2:02 pm

      So glad you enjoyed it!

      Reply
  • Alice // Hip Foodie Mom March 3, 2014, 6:07 pm

    I love a good veggie lasagna. . this looks great!

    Reply
  • Frank February 22, 2014, 9:24 pm

    Made this tonight and it was excellent! Thanks for the recipe.

    Reply
  • Britt @ My Daily Randomness February 22, 2014, 9:27 am

    Brilliant recipe! If I want to cut the meat out of my lasagnas I use mushrooms too! Or if I am looking to cut back on the meat I blend 1/2 finely chopped mushrooms with 1/2 the meat – works wonders every time! Looks like I know what I’ll be making this coming #MeatlessMonday!

    Reply
  • Katrina @ WVS February 21, 2014, 11:50 am

    I love spinach lasagna! And this recipe….yum!

    Reply

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