• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Appetizers
  • Desserts
  • Entrees
  • Side Dishes
  • Snacks
  • Contact Us

The Lazy Slow Cooker

menu icon
go to homepage
  • Appetizers
  • Desserts
  • Entrees
  • Side Dishes
  • Snacks
  • Contact Us
    • Facebook
    • Instagram
    • Pinterest
  • subscribe
    search icon
    Homepage link
    • Appetizers
    • Desserts
    • Entrees
    • Side Dishes
    • Snacks
    • Contact Us
    • Facebook
    • Instagram
    • Pinterest
  • ×

    Home

    Published: Aug 6, 2021 · Modified: Aug 5, 2021 · By Susan

    Lazy Slow Cooker Mushroom Spinach Lasagna

    • Facebook
    • Twitter
    • Email
    • Print
    Jump to Recipe

    Slow cooker mushroom spinach lasagna is an awesome vegetarian treat containing fresh veggies, savory marinara, noodles and lots of cheese!

    a piece of lasagna ready to serve
    Jump to:
    • 📝Shopping list
    • 🥣Preparation method
    • 🍽Serving suggestions
    • Storing leftovers
    • Variation
    • 😉Hints & Hacks
    • ❓FAQ's
    • 📖 Recipe

    It seems that crockpots have a "meat eater" type reputation. Which is well deserved - they do such a great job of tenderizing large pieces of meat. BUT, that doesn't mean they can't do a great vegetarian meals too.

    The is clearly evident in so many dishes. Everything from vegetables like Squash and Zucchini Parmesan to pastas like Slow Cooker TikTok Feta Pasta and Old Bay Mac & Cheese.

    📝Shopping list

    This is one of my favorite slow cooker recipes! To make it, you will need:

    Spinach mushroom lasagna ingredients with labels
    • Ricotta cheese - I use part-skim ricotta cheese
    • Shredded mozzarella cheese - I buy it already shredded
    • Spinach - fresh baby spinach leaves work well in this recipe
    • Eggs - beaten in a small bowl
    • Mushrooms - sliced white mushrooms (button) or cremini are both great
    • Lasagna noodles - uncooked
    • Marinara Sauce - homemade and jar sauce both work well.
    • Mozzarella - fresh, thickly sliced type
    • Garlic - minced
    • Basil - dried
    • Table salt & black pepper
    • Fresh basil - optional
    • Parmesan cheese - optional, for serving
    • Non-stick cooking spray - of choice - I like to spray olive oil

    See recipe card below for quantities.

    🥣Preparation method

    This dish is prepared in a pretty traditional lasagna fashion. To start, mix ricotta cheese with shredded mozzarella, egg and spice mixture as outlined in the recipe section below.

    cheese mixture in a silver bowl

    Next, spread a bit of tomato sauce on the bottom of slow cooker. Place a layer of noodles over sauce using whole, or broken lasagna noodles if necessary, to cover the full layer. Do NOT boil lasagna noodles first (one less step to worry about!).

    Lasagna noodles and sauce in slow cooker

    Next spread a layer of your cheese mixture over top of the noodles.

    view of cheese layer of lasagna in slow cooker

    Follow this with a layer of mushrooms and then a layer of spinach. Top with a layer of sauce.

    lasagna with mushroom and sauce layer showing

    Repeat all steps 1 - 2 times, depending on the depth of your slow cooker. When you are finished layering, top with fresh mozzarella cheese and remainder of the shredded mozzarella for extra cheesy goodness. Total cooking time will be 4 - 6 hours on low.

    mushroom spinach lasagna ready to be cooked

    🍽Serving suggestions

    Slow cooker mushroom and spinach lasagna is a full meal all by itself. It is delicious topped with some fresh chopped basil and fresh grated parmesan cheese. It is also great served with a crusty Italian loaf and a crisp garden salad. I love serving it with a side of mashed cauliflower!

    close up of a fork full of cheesy lasagna

    Storing leftovers

    Leftover crock pot vegetable lasagna is best stored in meal sized, air tight container or zipper topped bags. It will stay fresh for 3-5 days in the refrigerator or up to 3 months in the freezer.

    Reheated frozen portions may result in some softer noodles but it will be delicious! To help freshen it up, add a top layer of fresh cheese and heat until all cheese melts .

    Variation

    This is a great meatless dish. However, if you would like to include a lean protein, you can add a thin layer of browned ground turkey on top of each sauce layer.

    Finished slow cooker mushroom spinach lasagna still in crockpot

    😉Hints & Hacks

    1. If your slow cooker cooks unevenly (as some of mine do), try rotating it half way through cooking. Simply lift your slow cooker pot out of the heating element and rotate 180º before replacing it. Just beware that the pot will be HOT! Pot holders are a must!
    2. I am a huge fan of slow cooker liners and usually recommend them for everything. However, for this type of dish, parchment paper also works really well also. 
    3. Whether you choose to line your slow cooker or not, non-stick spray is a helpful step.
    4. In the market for a new slow cooker? I love my new one!

    More slow cooker vegetarian recipes

    • Lazy Slow Cooker Eggplant Casserole
    • Slow Cooker Mushroom Barley Soup
    • Lazy Slow Cooker Old Bay®️ Mac & Cheese
    • Lazy Slow Cooker TikTok Feta Pasta

    ❓FAQ's

    Can I make this recipe with cottage cheese rather than ricotta?

    Yes, you can. However, it may make the consistency of your final dish runnier.

    Do I have to add eggs to this lasagna?

    No! If you prefer, this can be made without eggs. However, the eggs give it some structure. So, if you choose to make this without eggs, it will have a softer "mushier" finish product.

    Recipe inspired by Flavorful Eats' Mushroom Kale Lasagna

    📖 Recipe

    a piece of lasagna ready to serve

    Lazy Slow Cooker Mushroom Spinach Lasagna

    Slow cooker spinach mushroom lasagna is an easy and delicious vegetarian meal. This amazing dish made with fresh veggies, savory sauce and soft noodles will be come a fast favorite!
    5 from 1 vote
    Print Pin Rate Save Saved!
    Prep Time: 25 minutes
    Cook Time: 6 hours
    Total Time: 6 hours 25 minutes
    Servings: 6 servings
    Calories: 543kcal
    Author: The Lazy slow cooker
    Prevent your screen from going dark

    Equipment

    • 6 qt. slow cooker or casserole crockpot
    • measuring spoons and cups
    • cutting board and knife
    • slow cooker liner or parchment paper (optional)
    • spoons for mixing

    Ingredients

    • 15 oz. ricotta cheese
    • 2 eggs beaten
    • 2 teaspoon minced garlic
    • 1 teaspoon salt
    • 1 teaspoon dried basil
    • ½ teaspoon ground pepper
    • 1½ cups shredded mozzarella cheese divided
    • 2 cups baby spinach leaves tightly packed
    • 16 oz. sliced button mushrooms
    • 8-12 oz. lasagna noodles uncooked
    • 4 cups marinara sauce or about 1.5 24 oz. jars
    • 8 oz. fresh mozzarella sliced
    • grated Parmesan cheese optional
    • fresh basil optional
    • non-stick cooking spray

    Instructions

    • in a medium bowl, combine ricotta cheese, beaten eggs, garlic, teaspoon salt, basil, pepper and 1 cup of shredded mozzarella cheese. mix and set aside
      15 oz. ricotta cheese, 2 eggs, 2 teaspoon minced garlic, 1 teaspoon salt, 1 teaspoon dried basil, ½ teaspoon ground pepper, 1½ cups shredded mozzarella cheese
    • line slow cooker with liner or parchment, if using
    • spray inside of liner or inside of slow cooker with non-stick spray of choice
    • spread a few tablespoons of marinara sauce on bottom of the slow cooker
      4 cups marinara sauce
    • place a single layer of uncooked lasagna noodles on top of sauce. you may need to use some broken lasagna noodle pieces to make a complete layer.
      8-12 oz. lasagna noodles
    • spread a layer of ricotta cheese mixture over noodles
    • place a layer of mushrooms on top of cheese
      16 oz. sliced button mushrooms
    • cover mushrooms with a layer of spinach
      2 cups baby spinach leaves
    • spoon a layer of sauce over the top of the spinach
      4 cups marinara sauce
    • repeat all steps starting with the lasagna noodle layer 1-2 times, depending on the depth of your slow cooker
    • top with a layer of sauce followed by a layer of fresh mozzarella slices and remaining shredded mozzarella
    • cover and cook on low for 4-6 hours.
    • use a spatula to cut pieces of finished lasagna to served and enjoy!

    Notes

    ** The dish in the photos was made in a casserole slow cooker. It is a very shallow crockpot so I was only able to include 2 layers. A regular slow cooker should hold 3 easily.

    Nutrition

    Calories: 543kcal | Carbohydrates: 44g | Protein: 34g | Fat: 26g | Saturated Fat: 15g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 143mg | Sodium: 1751mg | Potassium: 1079mg | Fiber: 5g | Sugar: 10g | Vitamin A: 2487IU | Vitamin C: 16mg | Calcium: 536mg | Iron: 4mg

    Follow us on Facebook

    Check out our latest on Instagram

    6 different images taken directly from instagram with 6 recipes that were posted there

    Have you tried this recipe? I would love to hear your thoughts in the comment section below!! 💓

    Close up of beef stroganoff with mushrooms and pasta

    Subscribe To Our Newsletter

    I'M IN!! SIGN ME UP FOR OCCASIONAL EMAILS FROM THE LAZY SLOW COOKER!

    You have Successfully Subscribed!

    More vegetarian

    • Slow Cooker Cauliflower Soup (Dairy Free)
    • Slow Cooker Mexican Casserole with Quinoa
    • Slow Cooker Cheese dip with Caramelized Onion Dip
    • Slow Cooker Quinoa Stuffing (Dressing)
    • Facebook
    • Twitter
    • Email
    • Print

    Reader Interactions

    Comments

      Leave a Reply Cancel reply

      Your email address will not be published. Required fields are marked *

      Recipe Rating




    1. Ellen says

      August 06, 2021 at 10:41 am

      5 stars
      Delicious and filling

      Reply

    Primary Sidebar

    Photo of Susan, the lazy slow cooker holding a large margarita

    Welcome to The Lazy Slow Cooker. I am so happy you are here! My name is Susan (yep - I am Lazy Susan!) and I am the recipe developer/blogger behind these posts. I am the mom of three amazing but super busy kids and the wife of one awesome and also super busy guy. All 5 of us have very different schedules and I would not survive mealtime without my crockpot. Read More…

    Popular Posts

    • Slow Cooker Yankee Pot Roast
    • Slow Cooker Kielbasa & Potato Casserole
    • Slow Cooker Mandarin Orange Chicken
    • Lazy Slow Cooker Baba Ghanoush

    Subscribe To Our Newsletter

    You have Successfully Subscribed!

    Footer

    ↑ back to top

    SEEN ON

    as seen on promo graphic

    SEEN ON

    as seen on promo graphic

    About

    • Privacy Policy
    • Terms & Conditions

    Newsletter

    • Sign Up! for emails and updates

    Contact

    • Contact

    As an Amazon Associate, I earn from qualifying purchases.

    Copyright © 2022 The Lazy Slow Cooker, LLC