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    Home > Recipes > Slow Cooker

    Slow Cooker Three Bean Taco Soup

    Published: Nov 7, 2022 · Modified: Nov 21, 2022 · by Jess Smith · Jump to Recipe · 5 Comments · This post may contain affiliate links.

    Slow Cooker Three Bean Taco Soup
    Slow Cooker Three Bean Taco Soup
    Three Bean Taco Soup in white bowls
    Slow Cooker Three Bean Taco Soup in a white bowl
    Three Bean Taco Soup in a slow cooker
    Three Bean Taco Soup in a slow cooker
    Freezer-Friendly Vegetarian Taco Soup
    Slow Cooker Three Bean Taco Soup

    Slow Cooker Three Bean Taco Soup in white bowls

    If you have 10 minutes, you have enough time to prep this Slow Cooker Three Bean Taco Soup that is vegetarian, gluten-free, and freezer-friendly. Just combine everything in the slow cooker and let it do its thing. Serve with your favorite taco toppings like cheese, sour cream, tortilla chips / strips, and green onions.

    My friend Amy used to make this flavorful, hearty vegetarian soup in big batches on cold winter nights when we were living in Washington, D.C. She made it in just a few minutes on the stovetop, but it freezes so easily that it’s become one of my favorite slow cooker meals. Just pour everything into the slow cooker and let it go.

    I like to serve this soup like you would a taco bar - set out toppings and let everyone pile them on.  For extra crunch, top the soup with homemade tortilla strips. 

    Slow Cooker Three Bean Taco Soup in a white bowl

    Why Make Taco Soup In the Slow Cooker

    This pantry-staple soup can absolutely be made on the stovetop, but by letting it simmer on low in the slow cooker you allow the flavors from the spices to fully develop. You get a similar effect when you make chili a few hours ahead of time and let it simmer very lightly on the stovetop. The spices get a deep, satisfying flavor that is simply better than when you eat it after just 30 minutes or so.  

    Three Bean Taco Soup in a slow cooker

    How to Bloom Spices for Slow Cooker Meals

    To bring out the best flavor in spices, bloom them before adding them to the slow cooker. Blooming is the process of heating the spices in oil just until they are fragrant, about 2 to 3 minutes. This gives them a head start on cooking and gives them a more round, full flavor.

    The book The Complete Slow Cooker from America’s Test Kitchen (which is a great and super comprehensive book) taught me two great ways to do this:

    1. Heat oil in a skillet. Add spices and saute them until fragrant, 1 to 2 minutes.
    2. Combine oil and spices in a bowl and microwave until fragrant, ~1 minute.

    If a recipe uses onions, you can just cook them in the oil first and add the spices. Blooming the spices is not necessary, but will maximize the flavor in the dish.

    mixing spices into onions

    Freeze This Meal

    This meal can be frozen in any freezer-safe bag or airtight container. To save freezer space, I prefer to freeze my slow cooker meals with just a portion of the liquid. (Add the rest of the liquid later, in the slow cooker.)

    To Freeze Slow Cooker Three Bean Taco Soup: Saute or microwave the onions and spices until onions are soft and spices are fragrant (Step #1 below). Combine onions, spices, tomato paste, garlic, corn, tomatoes, garbanzo beans, black beans, kidney beans, and 2 cups of chicken / vegetable stock in a freezer bag or airtight container. 

    To Reheat: Can cook right from frozen, defrost in the refrigerator overnight, or defrost at room temperature for 1 hour. Pour all ingredients into the bowl of a slow cooker with 4 cups of chicken / vegetable stock. Cook on low for 3 to 6 hours. (Note: the flavors will be well-developed after 3 hours, but if you prefer to have the soup simmering all day, you can let it simmer for 6 hours and then hold on the warm setting for up to 2 more hours.)

    Be sure to print the recipe below for a label you can attach to the top of the meal. That way the instructions are right at your fingertips!

    Slow Cooker Three Bean Taco Soup in a freezer bag

    Other Tex Mex Slow Cooker Meals

    Slow Cooker Turkey, Quinoa, and Sweet Potato Chili - Every year when the weather cools off I hear from many of you who are fans of this healthier slow cooker chili. The secret is the quinoa. It gets super tender and absorbs the flavorful cooking liquid. You almost can't tell it's there but it works a special kind of magic on the texture of the dish. 

    Slow Cooker White Chicken Chili - This is a lighter version of white chicken chili that doesn’t use the cream of chicken soup that many recipes use. It’s still fast and easy thanks to a jar of salsa verde which gives it a rich, smoky flavor.

    The Best Slow Cooker

    KitchenAid Slow Cooker (6 quart) - When I was testing slow cooker recipes (using many slow cookers!) for this fall season, I got a lot of questions about the “best” slow cooker. The truth is, I just followed the advice of other experts (including America’s Test Kitchen and Food and Wine). These kitchens found that the KitchenAid did the best job at maintaining a consistent, low temperature ideal for slow cooking. I found this to be true in my own kitchen too. While other brands (including Crock Pot brand) would get so hot that soups would visibly boil even on the low setting, the KitchenAid kept things at a nice, steady, low simmer.

    Three Bean Taco Soup in a slow cooker

    Three Bean Taco Soup in white bowls
    Print Recipe
    4.63 from 8 votes

    Slow Cooker Three Bean Taco Soup

    If you have 10 minutes, you have enough time to prep this Slow Cooker Three Bean Taco Soup that is vegetarian, gluten-free, and freezer-friendly. Just combine everything in the slow cooker and let it do its thing. Serve with your favorite taco toppings like cheese, sour cream, tortilla chips / strips, and green onions.
    This can be made in a 4-quart or 6-quart slow cooker.
    Prep Time15 mins
    Cook Time3 hrs
    Total Time3 hrs 15 mins
    Course: Main Dish
    Cuisine: Tex Mex
    Keyword: freezer friendly, gluten free, slow-cooker, vegan recipe, vegetarian meal, weeknight-friendly
    Servings: 4 generous servings (or 6 smaller servings)
    Calories: 364kcal
    Author: Jess Smith via Inquiring Chef
    Cost: $8.50

    Equipment

    • 4-quart or 6-quart Slow Cooker
    • Knife
    • Cutting Board

    Ingredients

    • 1 Tablespoon Cooking Oil
    • 1 Yellow Onion, chopped
    • 2 teaspoon Ground Cumin
    • 2 teaspoon Chili Powder (sub Paprika if you don’t want any spice)
    • 1 teaspoon Dried Oregano
    • 2 Tablespoon Tomato Paste
    • 4 cloves Garlic, chopped
    • 1 ½ cups Frozen Corn
    • 1 15 ounce can Petite Diced Tomatoes
    • 1 15 ounce can Garbanzo Beans / Chickpeas, drained and rinsed
    • 1 15 ounce cans Black Beans, drained and rinsed
    • 1 15 ounce can Kidney Beans, drained and rinsed
    • 6 cups Vegetable Stock
    • 1 teaspoon Lime Juice

    Optional Toppings:

    • Sour Cream
    • Tortilla Strips or Tortilla Chops
    • Chopped Green Onions
    • Lime Wedges

    Instructions

    • Combine oil, onion, cumin, chili powder, and oregano in a microwave-safe bowl. Microwave on high for 2 minutes until the onions soften and the spices are fragrant. (This is just to get the onions and spices started cooking so they don’t go into the slow cooker raw. If you prefer, you can also saute all of these ingredients on the stovetop for 4 to 5 minutes.)
    • Transfer onion and spices to the bowl of a slow cooker. Add tomato paste, garlic, corn, tomatoes (including liquid), garbanzo beans, black beans, kidney beans, and stock. (Note: To freeze, combine all ingredients except 4 cups of stock in a large freezer-safe plastic bag or container.)
    • Cook on low for 3 to 6 hours. (Note: the flavors will be well-developed after 3 hours, but if you prefer to have the soup simmering all day, you can let it simmer for 6 hours and then hold on the warm setting for up to 2 more hours.)
    • When soup is done cooking, stir in lime juice. Taste and season with some salt and pepper.
    • Serve soup with any toppings you’d like.

    Notes

    If you are making this meal ahead for yourself or someone else, combine all ingredients except 4 cups of stock in a large freezer-safe plastic bag or container. Refrigerate for up to 3 days. Freeze for up to 4 months. Print and attach the label below so cooking instructions are ready when you are!
    three bean taco soup freezer label

    Nutrition

    Serving: 2cups | Calories: 364kcal | Carbohydrates: 64g | Protein: 19g | Fat: 7g | Saturated Fat: 1g | Sodium: 383mg | Potassium: 1170mg | Fiber: 18g | Sugar: 5g | Vitamin A: 730IU | Vitamin C: 17mg | Calcium: 114mg | Iron: 7mg

    *This post contains affiliate links*

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    About Jess

    Hi! I'm Jess. I am the recipe creator and photographer behind the 900+ recipes you’ll find on Inquiring Chef. As a mom to three young kids and professional cook, my mission is to make every moment in the kitchen and around the table count. If you’re looking for easy, flavorful, family-approved recipes, you’ve come to the right place! Learn more about me here.

    Reader Interactions

    Comments

    1. Joy

      October 09, 2019 at 5:25 pm

      This looks wonderful, especially topped with your crispy tortilla strips. I want to make this recipe soon. I love how easy it is!

      Reply
    2. Doug

      January 13, 2020 at 3:28 pm

      4 stars
      Made this last night. Very good and popular with a wide range of people (kids to full blown adults). Only issue was that I was making it for a large group (6 adults, 2 teens and three smaller kids). Based on the servings listed (only 4) I tried to double the recipe (although couldn’t fit more than 1 3/4 in our crock pot). Upshot is we had WAY more than we needed. Would have been fine with a single recipe. Listing this as only having four servings really undersells how much there is I need it.

      Reply
      • Jess

        January 13, 2020 at 5:20 pm

        Thanks so much for the note Doug. Maybe we're big soup eaters? 😉 I updated the servings to indicate a bit more wiggle room in the portion size. Glad you all enjoyed it!

        Reply
    3. Allie

      October 05, 2020 at 6:35 pm

      5 stars
      Delicious! Ate with the homemade tortilla strips from this site too. Topped with avocado, shredded cheese, and sour cream. As well as some hot sauce. Was really filling for a vegetarian meal! Maybe my crockpot is abnormally small, but I was only able to fit 3 cups of liquid, though still soupy enough for me!

      Reply
      • Jess Smith

        October 06, 2020 at 4:38 pm

        So glad you liked it! I use a 6-quart slow cooker for most things, but I was probably being a bit too ambitious to say that this could also fit in a 4-quart. Glad you were able to make it work!

        Reply

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