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HomeMealtimeRecipesSlow Cooker Recipes

Slow Cooker Mushroom Spinach Lasagna Recipe

5 from 1 vote
Angela SellariBy Angela Sellari
Angela Sellari
Angela Sellari Founder of AboutAMom

Angela is the founder of About A Mom and currently acts as a content creator and editor-in-chief for the About A Mom Team. She has been a professional blogger for over 10 years. Angela has appeared…

Expertise: Content Creation & Editing View all posts →
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I love Italian food. I really LOVE anything dish with tomatoes. There is nothing better than a good red sauce. I have been working on my family tree the last few months, and am astonished that I don’t have any roots tracing back to Italy. How could that be? I wonder if there is any such thing as an honorary Italian.

Slow cooker mushroom spinach lasagna with a bubbly, melted cheese topping.

Slow Cooker Mushroom Spinach Lasagna

Ingredients:

PAM® Original No-Stick Cooking Spray
1 tablespoon olive oil
1 pkg (8 oz each) fresh sliced mushrooms
1 pkg (6 oz each) baby spinach leaves
1 can (14.5 oz each) Hunt’s® Diced Tomatoes with Basil, Garlic and Oregano, undrained
2 cups Hunt’s® Tomato Sauce
1/2 teaspoon dried Italian seasoning
1/4 teaspoon salt
1 container (8 oz each) part-skim ricotta cheese
1/2 cup Kraft® Grated Parmesan Cheese, divided
1/4 teaspoon ground black pepper
6 dry lasagna noodles, uncooked
1-1/2 cups shredded Italian blend cheese, divided

Directions:

Step 1: Spray inside of 4-quart slow cooker with cooking spray. Heat oil in large skillet over medium-high heat. Add mushrooms; cook 3 minutes, stirring occasionally. Add spinach; cook 3 minutes more or until mushrooms are tender and spinach is wilted, stirring occasionally. Stir in undrained tomatoes, tomato sauce, Italian seasoning and salt. Bring to a boil. Reduce heat and simmer 3 minutes, stirring occasionally. Meanwhile, combine ricotta cheese, 1/4 cup Parmesan cheese and pepper in small bowl; set aside.

Simmering mushroom and spinach tomato sauce in a skillet with cans of tomatoes.

Step 2: Spread 3/4 cup sauce mixture over bottom of slow cooker. Layer 3 lasagna noodles over sauce mixture, breaking noodles to fit. Top with 3/4 cup sauce mixture, ricotta cheese mixture and 1 cup Italian cheese. Top with 3/4 cup sauce mixture and remaining 3 lasagna noodles, breaking to fit. Spoon remaining sauce mixture over noodles.

Vegetarian Slow Cooker Lasagna

Step 3: Cover; cook on LOW 5 hours or until noodles are tender. Sprinkle with remaining 1/2 cup Italian cheese and remaining 1/4 cup Parmesan cheese. Cover; let stand 5 minutes or until cheese melts.

Slow Cooker Mushroom Spinach Lasagna with melted Italian cheese and a serving spoon.

Slow Cooker Mushroom Spinach Lasagna with melted Italian cheese and a serving spoon.

Slow Cooker Mushroom Spinach Lasagna Recipe

Angela Sellari
Layer up a comforting Slow Cooker Mushroom Spinach Lasagna recipe. This vegetarian dish is packed with cheesy goodness & tender veggies for a cozy dinner.
5 from 1 vote
Print Recipe Pin Recipe
Prep Time 15 minutes mins
Cook Time 5 hours hrs
Wait Time 5 minutes mins
Total Time 5 hours hrs 20 minutes mins
Course Main Course, pasta recipes
Cuisine Italian
Servings 8
Calories 158 kcal

Ingredients
  

  • PAM® Original No-Stick Cooking Spray
  • 1 tablespoon olive oil
  • 1 pkg 8 oz each fresh sliced mushrooms
  • 1 pkg 6 oz each baby spinach leaves
  • 1 can 14.5 oz each Hunt’s® Diced Tomatoes with Basil, Garlic and Oregano, undrained
  • 2 cups Hunt’s® Tomato Sauce
  • 1/2 teaspoon dried Italian seasoning
  • 1/4 teaspoon salt
  • 1 container 8 oz each part-skim ricotta cheese
  • 1/2 cup Kraft® Grated Parmesan Cheese divided
  • 1/4 teaspoon ground black pepper
  • 6 dry lasagna noodles uncooked
  • 1-1/2 cups shredded Italian blend cheese divided

Instructions
 

  • Spray inside of 4-quart slow cooker with cooking spray. Heat oil in large skillet over medium-high heat. Add mushrooms; cook 3 minutes, stirring occasionally. Add spinach; cook 3 minutes more or until mushrooms are tender and spinach is wilted, stirring occasionally. Stir in undrained tomatoes, tomato sauce, Italian seasoning and salt. Bring to a boil. Reduce heat and simmer 3 minutes, stirring occasionally. Meanwhile, combine ricotta cheese, 1/4 cup Parmesan cheese and pepper in small bowl; set aside.
    Simmering mushroom and spinach tomato sauce in a skillet with cans of tomatoes.
  • Spread 3/4 cup sauce mixture over bottom of slow cooker. Layer 3 lasagna noodles over sauce mixture, breaking noodles to fit. Top with 3/4 cup sauce mixture, ricotta cheese mixture and 1 cup Italian cheese. Top with 3/4 cup sauce mixture and remaining 3 lasagna noodles, breaking to fit. Spoon remaining sauce mixture over noodles.
    Vegetarian Slow Cooker Lasagna
  • Cover; cook on LOW 5 hours or until noodles are tender. Sprinkle with remaining 1/2 cup Italian cheese and remaining 1/4 cup Parmesan cheese. Cover; let stand 5 minutes or until cheese melts.
    Slow Cooker Mushroom Spinach Lasagna with melted Italian cheese and a serving spoon.

Nutrition

Calories: 158kcalCarbohydrates: 20gProtein: 8gFat: 6gSaturated Fat: 2gSodium: 480mgFiber: 2g
Keyword Slow Cooker Mushroom Spinach Lasagna
Tried this recipe?Let us know how it was!

About Angela SellariContent Creation & Editing

Angela is the founder of About A Mom and currently acts as a content creator and editor-in-chief for the About A Mom Team. She has been a professional blogger for over 10 years. Angela has appeared in numerous TV segments, advertising campaigns and her work has been featured by many top publications. She lives in Tampa, Florida.

Reader Interactions

Published: Oct 15, 2014 | Updated: May 14, 2026
5 from 1 vote (1 rating without comment)

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Have a question? Use the form below to submit your question or comment. I love hearing from you and seeing what you made!

Recipe Rating




  1. Lucy Lopez says

    Posted on 10/15 at 6:13 PM

    This looks delicious. Love recipes for my slow cooker. Will be making this for my family.

    Reply
  2. Dijah W says

    Posted on 10/15 at 6:16 PM

    Thank you for this recipe! I love using my slow cooker but have been trying to figure out something new to try. I will be giving this a shot. Looks delicious!

    Reply
  3. Rachel says

    Posted on 10/15 at 11:53 PM

    Oh my yum! This looks so good! Thanks for sharing!

    Reply
  4. Danielle Royalegacy says

    Posted on 10/16 at 3:40 PM

    This will be a great meal for us for our meatless Friday dinner this week. Everyone is going to love it!

    Reply
  5. Ty says

    Posted on 10/16 at 3:43 PM

    I’ve never heard of cooking lasagna in a slow-cooker! I definitely need to try this versus cooking it in my oven!

    Reply
  6. Dawn says

    Posted on 10/16 at 7:15 PM

    Slow cooker lasagna is right up my alley. I’m ALL about the slow cooker. Thanks for sharing. I’ll be making this this weekend.

    Reply
  7. Danielle Stewart says

    Posted on 10/16 at 7:24 PM

    That looks amazing. Anything that you can make in the slow cooker, sounds like a winner to me. I actually need the meat and not the noodles. I think I may attempt to modify this by adding meat, removing noodles and see what happens. Yum!

    Reply
    • Dawn says

      Posted on 10/17 at 6:26 PM

      Agreed. If you can put it in a slow cooker, I love it immediately.

      Reply
  8. michele d says

    Posted on 10/16 at 8:07 PM

    Spinach Lasagna sounds so good right now! Looks awesome!

    Reply
  9. Bonnie @ wemake7 says

    Posted on 10/16 at 8:33 PM

    Oh boy, I’m drooling over here. I love how the cheese is all melted and yummy.

    Reply
  10. Taylor says

    Posted on 10/16 at 9:15 PM

    That looks so yummy! Maybe I can convince my boyfriend to make it!

    Reply
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