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    Home » Recipes » Low-Carb Keto Dinner Recipes

    The Best Slow Cooker Lasagna (Cheat's Cheese Sauce)

    Published: Aug 23, 2019· Modified: Nov 4, 2022· By Libby Jenkinson May contain affiliate links.

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    5-INGREDIENTS COOKBOOK STARTER PACK JUMP TO RECIPE
    Slow cooker lasagne served on a plate in front of the instant pot
    slow cooker lasagna about to be served from the slow cooker
    Yum! This cheats cheese sauce is amazing! #slowcookerlowcarblasagna #slowcooker #lasagnawithzucchini #lowcarb #keto #glutenfree

    This low-carb slow cooker lasagna with cheats cheese sauce will become a weekly staple on your dinner menu.

    It's the perfect healthy comfort food and it's also perfect for the freezer.

    The whole family will love this dinner and there's a good chance you already have everything you need in your fridge and pantry. 

    collage of low carb slow cooker lasagna images
    Low-carb slow cooker lasagna
    Jump to:
    • Ingredients you need
    • Cheat's Cheese Sauce
    • How to cook lasagna in a slow cooker
    • Oven cooking instructions
    • What to serve with keto lasagna
    • 📖 Recipe
    • 💬 Comments

    Ingredients you need

    Zucchini is the go-to vegetable when you need to replace pasta with a healthier option. This lasagna is no exception. You will need to use long thin slices of zucchini as a replacement for the noodles.

    beef sauce with sliced zucchini and a slow cooker all ready to assemble the lasagna

    I prefer to use a mandolin to slice the zucchini into a thin 3 mm (⅛ inch) sheet. However, a mandolin is not necessary. If you have a hard time slicing the zucchini into sheets, that's ok, the lasagna is just as tasty using thinly sliced zucchini circles.

    You will need about one zucchini for every layer of lasagna. I made a 3 layer lasagna so I used 3 zucchini. The recipe will call for 3-4 zucchini to ensure you have enough. Start with 3 and if you need more slice up the fourth.

    How to make sugar-free marinara

    After you have sliced your zucchini, the next step is to make the marinara. Start by browning the ground beef and draining the grease.

    Next add the can of sugar-free crushed tomatoes, or tomato puree, and the seasoning. Bring the sauce to a simmer and then remove it from the heat. The flavors of the sauce will continue to meld as the lasagna cooks in the slow cooker.

    close up of lasagna layers
    Slow cooker lasagna

    Cheat's Cheese Sauce

    The cheat's cheese sauce is delicious and easy to make. In a separate bowl mix together the cheese, cream, eggs, salt, and pepper for the sauce. 

    I used a combination of shredded mozzarella and parmesan cheese for the cheese sauce. If you do not have a combination of the cheese you can use ½ cup parmesan cheese and ½ cup mozzarella cheese. 

    Your cheats cheese sauce will be somewhat liquid, this makes it easy to spread. Don't worry, it will firm up as it cooks.

    • Frying pan with spaghetti meat sauce
      Make the meat sauce
    • Glass bowl with cheat\'s cheese sauce
      The cheat's cheese sauce
    • Slow cooker dish with layers of zucchini and cheat\'s cheese sauce
      Layer with zucchini
    • Slow cooker dish with layers of zucchini and tomato sauce with cheese
      Add meat and cheese, repeat.

    How to cook lasagna in a slow cooker

    Now that you have all the parts of the lasagna prepped it is time to assemble. Start by adding a little bit of marinara to the bottom of your slow cooker. This will keep the lasagna from sticking to the bottom.

    Next, add a layer of zucchini on top of the marinara. Spread ⅓ of the cheese sauce over the zucchini, then cover it with ⅓ of the marinara. Add three layers to the lasagna then sprinkle the top with shredded cheese.

    Cover the slow cooker and cook your lasagna on high for 2-3 hours or low for 4-5 hours. When the lasagna is done, let it cool for about 15 minutes before slicing and serving. The zucchini will release a lot of liquid, this can be carefully poured out and discarded if desired.

    lasagna served with salad on a textured white plate
    Serving suggestion

    Oven cooking instructions

    Your lasagna may also be cooked in the oven. Assemble your lasagna in a baking pan and cover with foil. Cook the lasagna for 40-45 minutes at 190 C/375 F, uncover the lasagna for the last 10 minutes to crisp the top.

    You might also enjoy my low-carb skillet lasagna recipe that's cooked on your stovetop.

    Leftover lasagna can be stored in an airtight container in the refrigerator for 3-5 days. They make excellent lunch the next day and are wonderful for lunch meal prep. Enjoy!

    What to serve with keto lasagna

    When you avoid high carb side dishes, you avoid most of the unnecessary carbs in a meal. There are so many delicious low-carb and keto alternatives.

    There are so many quick and tasty side dishes for beef, but the most popular would have to be cheesy garlic bread, baked cheesy broccoli and cauliflower, or simple steamed low-carb vegetables.

    lasagna cooked and sitting in the slow cooker
    Slow cooker lasagna

    📖 Recipe

    Please rate this recipe.

    4.7 from 14 votes

    Slow Cooker Low-Carb Lasagna with Cheats Cheese Sauce

    Slow cooker low-carb lasagna will become a weekly dinner menu staple.
    Servings: 6
    NET carbs: 8g
    Author: Libby Jenkinson
    Prep Time 15 minutes
    Cook Time 3 hours
    Category: Dinner
    Diet: Diabetic. Gluten Free
    Gluten Free. Grain free. Keto. LCHF. Low Carb. No Sugars. Wheat Free
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    Recipe Video

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    Ingredients

    • 3-4 zucchini cut into ling thin slices 3 mm or ⅛ inch
    • 125 g (1 cup) shredded/grated cheese

    Marinara

    • 450 g (1 lb) ground/minced beef
    • 800 g (28 oz) tinned/canned chopped tomatoes
    • 1 teaspoon onion powder
    • 1 teaspoon garlic salt
    • ½ teaspoon Italian seasoning
    • ½ teaspoon pepper

    Cheats Cheese Sauce

    • 3 eggs - medium
    • 125 ml (½ cup) heavy whipping cream
    • 125 g (1 cup) shredded/grated cheese mozzerella and parmesan cheese blend
    • ¼ teaspoon salt and pepper

    Equipment

    • Slow cooker
    • Measuring cups and spoons

    Instructions

    • Using a mandolin thinly slice the zucchini into sheets about 3 mm or ⅛ inch thick. Set aside until ready to use.
    • Brown the ground/minced beef in a skillet and drain the grease. Add the remaining marinara ingredients and bring the sauce to a simmer. Remove from the heat and set aside until ready to use.
    • In a bowl mix together the ingredients for the cheats cheese sauce. Now you are ready to assemble the lasagna.
    • Add a little marinara to the bottom of the slow cooker. Place a layer of zucchini on top of the marinara. Cover the zucchini with ⅓ of the cheese sauce and then ⅓ of the marinara. Repeat until you have three layers of lasagna. Sprinkle the top of the lasagna with shredded cheese then cover the slow cooker with the lid.
    • Cook the lasagna on HIGH for 2-3 hour or LOW for 4-5 hours. When the lasagna is done cooking let it read for at least 15 minutes before cutting and serving. Any excess liquid from the zucchini can be carefully poured out and discarded. Enjoy!
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    5-INGREDIENTS COOKBOOK

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    Nutrition Facts
    Slow Cooker Low-Carb Lasagna with Cheats Cheese Sauce
    Serving Size
     
    1 serving
    Amount per Serving
    NET carbs
     
    8
    g
    Total Carbohydrates
     
    10
    g
    3
    %
    Fiber
     
    2
    g
    8
    %
    Sugar
     
    6
    g
    7
    %
    Protein
     
    28
    g
    56
    %
    Fat
     
    35
    g
    54
    %
    Sodium
     
    1044
    mg
    45
    %
    Potassium
     
    787
    mg
    22
    %
    Vitamin A
     
    1059
    IU
    21
    %
    Vitamin C
     
    30
    mg
    36
    %
    Calcium
     
    309
    mg
    31
    %
    Iron
     
    4
    mg
    22
    %
    % Daily Value*
    -
    Calories
    460
    * Percent Daily Values are based on a 2000 calorie diet.

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    Approximate nutrition information is provided for convenience and as a courtesy only. For the most accurate nutritional data, use the actual ingredients and brands you used in your preferred nutrition calculator.

    Additional slow-cooker dinner recipes you may like:

    • How to Cook a Whole Chicken in the Slow Cooker Plus Bone Broth
    • Self Saucing Slow Cooker Meatballs
    • Keto Slow Cooker Pulled Pork

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    • The Best Keto Chicken Parmesan (Oven Recipe)
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    I'm Libby Jenkinson MPS. A registered pharmacist, Health Coach, Cert.Adv Nutrition, mother of 3 and founder of Ditch The Carbs and Low-Carb Practitioners.

    Learn more about me →

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    1. Clara

      September 29, 2022 at 12:55 pm

      5 stars
      Such an easy and delicious recipe. I do mine in the oven. I add mushrooms and other vegies grated or chopped up finely to the meat sometimes.

      Reply
    2. Jan

      February 07, 2020 at 8:08 am

      5 stars
      I used ground turkey and fat free half and half and it was very good

      Reply
    3. Annette

      August 24, 2019 at 3:23 am

      I love healthy foods thank you so much for the recipes

      Reply

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