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    You are here: Home / Main Dish / Vegan Spaghetti Sauce from the Slow Cooker

    Vegan Spaghetti Sauce from the Slow Cooker

    Published: November 17, 2019. Last Updated: March 30, 2023 by: Ginny McMeans

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    Jump to Recipe -
    Spaghetti sauce if piles on a mound of pasta with fresh basil on top.
    Close photo of spaghetti sauce on a pile of spaghetti with basil on top.

    Vegan Spaghetti Sauce from the slow cooker is one of those recipes that the crockpot was made for. Low and slow for an easy pasta sauce and homemade dinner that will disappear quickly. 

    Up close photo of plant based pasta sauce on spaghetti.

    Spaghetti Sauce is one of those recipes that the crockpot was made for. The sauce is best when cooked low and slow so this recipe along with the crockpot is a match made in heaven.

    There aren't even that many ingredients so it is also super easy.

    Each ingredient really adds to the taste though so don't leave any out. They all have their job to make this sauce perfect.

    I am addicted to crockpots. Summer or winter I am always using the slow cooker. On hot summer days, it goes out on our covered patio and does its thing all by itself.

    Jump to:
    • Ingredients
    • Instructions
    • Versatile homemade spaghetti sauce
    • Can you freeze this spaghetti sauce
    • More amazing sauces
    • 📋 Recipe

    A couple of other crockpot recipes that I use all the time are Slow Cooker Apple Cinnamon Oatmeal and of course, there are many soups and chilis but this White Bean Chili recipe is one of my husband's favorites.

    Spaghetti sauce on spaghetti with a salad at the back.

    We are camping in our trailer right now and there is even a slow cooker under the sink.

    I know camping is more like campfires and snacking but once in a while, I want that nice homemade vegan spaghetti sauce.

    I even freeze in single serving size containers and it's right in the camper.

    This recipe has gone a step further in that I added plant-based ground beef crumbles but you don't need to add this texture if you don't wish. So this is the only ingredient you can possibly leave out.

    It just seems to give the sauce a little more satisfaction for those cold nights. A sort of 'sticks to your ribs' kind of meal.

    Overhead view of a feast with spaghetti and sauce and a tossed salad.

    Ingredients

    • Meatless ground beef crumbles - adds texture and protein.
    • Diced tomatoes - is perfection for the bulk of the sauce.
    • Tomato paste - is a concentrated rich tomato ingredient that rounds out the sauce flavors.
    • Water - blends the ingredients together and makes a sauce.
    • Extra virgin olive oil - is flavorful and helps sweeten the sautéd onions.
    • Yellow onions - are another texture and a necessity for Italian tomato sauces.
    • Garlic - is understated and flavorful.
    • Bay leaf - has to be incorporated into the flavors.
    • Coconut sugar - evens out the acidity from the acidity in the tomatoes
    • Dried oregano - is a Mediterranean seasoning favorite.
    • Dried basil - rounds out the flavors.
    • Salt and pepper - are the perfect seasonings to finish off the sauce.
    Two jars filled with plant based marinara sauce all ready for freezing.

    Instructions

    • Put the oil in a large skillet and heat to medium-low.
    • Add the onion and sauté until it is translucent. About 10 minutes.
    • Add the garlic and cook 3 more minutes. It really does make the sauce taste better to sauté first.
    • Add all of the ingredients to the slow cooker except the frozen meatless crumbles.
    • Cook on low for 6 to 8 hours adding the frozen meatless crumbles the last two hours.
    • If you want to turn out the sauce more quickly then cook on high 3 to 4 hours adding the frozen meatless crumbles the last hour.
    • You can also make a thinner sauce by just adding another cup or so of water.
    • Also, another chef's tip is that you can have a creamier sauce by using canned roasted tomatoes instead of diced.
    • I often make a big batch and freeze in freezer jars. Perfect for future meals.
    Two process photos. One with sauteed onions and the other is a crockpot full of the ingredients and mixed.

    Versatile homemade spaghetti sauce

    Don't limit yourself to spaghetti for this sauce. Serve with any of your favorite pasta.

    All you need to do is cook up some pasta and add a crusty bread right next to a salad.

    Submarine sandwiches filled with beanballs and sauce is delicious too and how about layering on pizza dough with sautéd bells, olives, and sautéd mushrooms.

    Works for me!

    Can you freeze this spaghetti sauce

    Absolutely! Just bring to a boil and cook about 5 minutes on medium heat and serve. Hot spaghetti sauce is the best.

    IF FREEZING:

    Let cool to room temperature. Package in rigid sided containers as defined in my article How to Prepare Food for the Freezer

    I freeze it in freezer jars and it keeps the sauce neat and contained in the freezer.

    Spaghetti Sauce from the Slow Cooker jarred

    TO PREPARE AFTER FREEZING:

    Remove from the freezer and put in the refrigerator overnight because it is a pretty solid mass and will take longer to defrost.

    THE NIGHT OF SERVING:

    Put all in a large saucepan and heat o boiling and then turn down the heat for about 5 minutes.

    Cover with a splash guard to play it safe and keep everything cleaner on the stovetop.

    More amazing sauces

    • White Pizza Sauce! You knew I wouldn't let you down 🙂
    • And we musn;t forget the Homemade Cranberry Sauce.
    Square photo of the perfect plateful of spaghetti.

    If you take a photo of your thick and delicious slow cooker spaghetti sauce I would love to see it. Follow me over on Instagram and tag me on your photo @vegan_in_the_freezer.

    Your opinion means a lot to me and if you'd like to leave a comment and possibly a star rating I'd love to hear your thoughts.

    📋 Recipe

    Square photo of the perfect plateful of spaghetti.

    Vegan Slow Cooker Spaghetti Sauce

    Ginny McMeans
    Vegan Slow Cooker Spaghetti Sauce is one of those recipes that the crockpot was made for.
    4.95 from 18 votes
    Print Save Saved
    Prep Time 15 minutes mins
    Cook Time 8 hours hrs
    Total Time 8 hours hrs 15 minutes mins
    Course Main Dish, Sauces, Dressings, Condiments
    Cuisine Italian
    Servings 10 Servings
    Calories 191 kcal

    Ingredients
      

    • 12 ounces veggie meatless ground beef crumbles - 1 package
    • 56 ounces 28 ounces each diced tomatoes - - 2 cans - 28 ounces each
    • 24 ounces tomato paste - I found - 4 cans 6 ounces each
    • 18 ounces water
    • 2 tablespoons extra virgin olive oil
    • 2 cups yellow onions, finely diced
    • 4 cloves garlic, finely diced
    • 1 teaspoon crumbled bay leaf
    • 2 tablespoons coconut sugar
    • 1 teaspoon dried oregano
    • 1 teaspoon dried basil
    • 1 teaspoon salt
    • ½ teaspoon black pepper

    Instructions
     

    • Put the oil in a large skillet and heat to medium-low.
    • Add the onion and sauté until it is translucent. About 10 minutes.
    • Add the garlic and cook 5 more minutes. It really does make the sauce taste better to sauté first.
    • Add all of the ingredients to the slow cooker except the frozen meatless crumbles.
    • Cook on low for 6 to 8 hours adding the frozen meatless crumbles the last two hours.
    • If you want to cook on high then cook 3 to 4 hours adding the frozen meatless crumbles the last hour.
    • Serve hot!

    Notes

    IF FREEZING:
    Let cool to room temperature. Package in rigid sided containers as defined in my article How to Prepare Food for the Freezer
    I freeze it in freezer jars and it keeps the sauce neat and contained in the freezer.
    PICTURE
    TO PREPARE AFTER FREEZING:
    Remove from the freezer and put in the refrigerator overnight because it is a pretty solid mass and will take longer to defrost.
    THE NIGHT OF SERVING:
    Put all in a large saucepan and heat o boiling and then turn down the heat for about 5 minutes.
    Cover with a splash guard to play it safe and keep everything cleaner on the stovetop. 

    Nutrition

    Serving: 1ServingCalories: 191kcalCarbohydrates: 30gProtein: 10gFat: 6gSaturated Fat: 1gCholesterol: 2mgSodium: 1200mgPotassium: 1153mgFiber: 7gSugar: 15gVitamin A: 1229IUVitamin C: 34mgCalcium: 136mgIron: 5mg
    Tried this recipe?Let us know how it was!
    Blue graphic snowflake as Vegan in the Freezers logo.
    Very close up photo of spaghetti sauce.
    Spaghetti Sauce with Sausage on a black plate.
    Spaghetti Sauce ready for the freezer.
    Spice Ingredients for homemade Spaghetti Sauce
    Frozen Meatless Crumbles for Spaghetti Sauce
    Spaghetti Sauce  on spaghetti square.

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      Recipe Rating




    1. Ginny McMeans

      May 02, 2021 at 9:35 am

      I would brown it right pretty close to when I was going to serve it Alyssa - like when the spaghetti is cooking. Then I would add it to the sauce while the plant based meat is still warm or hot.

    2. Lauren C

      September 27, 2022 at 7:56 am

      5 stars
      I make this every few weeks and spaghetti with this sauce is one of the few recipes on our regular rotation. I substitute one 28 oz can of crushed tomatoes for one can of diced and I use mushrooms instead of faux meat crumbles and it really is some of the best spaghetti sauce ever! I also use the sauce in recipes. Thanks for a great recipe!!

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    For years I dabbled in cooking vegan food, but since I became a mom it has become more important for me than ever. What I’m after is a great collection of healthy and not time-consuming vegan recipes that make the whole family look forward to meals together.

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