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    Home » Recipes » Slow Cooker

    Slow Cooker Chicken Fajitas Recipe

    Published: Oct 6, 2020 · Modified: Sep 21, 2023 by Beth Sachs · 6 Comments · This post may contain affiliate links.

    Jump to Recipe
    Slow Cooker CHicken Fajitas Pinterest image with text overlay.

    These slow cooker chicken fajitas are not only super delicious but also incredibly easy to prepare! Simply add all the ingredients to your crockpot, turn it on, and let it cook for 6 hours.

    Slow cooker fajitas are the perfect solution for those hectic weeknights when you're short on time.

    Slow cooker chicken fajitas in a slow cooker.

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    In our household, chicken fajitas are always a hit for dinner! To make things even easier on busy school nights, I've adapted the recipe to be cooked in a slow cooker.

    All you have to do is toss in the ingredients and turn it on - it's that simple! This slow cooker version of chicken fajitas is a perfect solution for those hectic evenings when you need a quick and delicious meal.

    Jump to:
    • ✔️ Why should you try it?
    • 🥘 Ingredients
    • 🔪 Instructions
    • 💭 Top tips
    • 🍴 Serving suggestions
    • 🥡 Storage
    • ❓ FAQS
    • 😋Related recipes
    • Recipe
    • 💬 Comments

    ✔️ Why should you try it?

    • The combination of tender chicken, peppers and onions, and warm spices make these fajitas incredibly delicious and satisfying.
    • You can customise this recipe to your liking by adjusting the amount of spices, adding different vegetables, or using a different type of protein.
    • With just a few simple ingredients and a slow cooker, this recipe is incredibly easy to prepare.

    🥘 Ingredients

    • Chicken Breasts - 1kg of boneless, skinless chicken breasts cut into strips.
    • Onion - one onion, sliced thinly.
    • Garlic - four cloves, peeled and chopped.
    • Peppers - I use a mixture of red and yellow peppers, sliced thinly.
    • Tomato Puree - helps create the smoky fajita sauce.
    • Fajita Seasoning - I make a homemade fajita seasoning combining chilli, cumin, smoked paprika, oregano, cinnamon, and ground coriander.
    • Thickening Granules - so much easier to use than making a cornflour slurry. If you can't get hold of thickening granules, then by all means use cornflour. However, as the cornflour needs to reach boiling point to start thickening, you will need to transfer the fajitas to a saucepan on the hob for the final part of cooking.
    • To serve - lime juice, tortilla wraps, grated cheddar, salsa.

    🔪 Instructions

    The recipe card with ingredient quantities and detailed instructions can be found at the bottom of the post

    One: Place the sliced onions, peppers, and chopped garlic in the slow cooker basin.

    Two: Place the chicken breast strips on top.

    Three: Sprinkle over the fajita spices and spoon in the tomato puree. Season with salt.

    Four: Give everything a mix and cook on low for 6 hours. Thicken the sauce by sprinkling in 2-3 tablespoons of the thickening granules and stir them into the sauce until it thickens to your desired consistency. You could also leave the lid off for the last hour of cooking.

    Step by step photo instructions for making slow cooker chicken fajitas

    💭 Top tips

    • If you prefer, you can use a ready-mixed pack of fajita seasoning. For 1 kg of chicken you will need to use 2 of the standard supermarket sachets.
    • Up the nutritional content of the dish by adding 1 tin of drained black beans.
    • If you like things spicy, double the quantity of chilli (see recipe card for amounts).
    • For shredded chicken (rather than chicken pieces), place whole chicken breasts into the slow cooker basin and shred with forks at the end of cooking.
    • Make slow cooker chicken fajita pasta by adding 250g (dry weight) of cooked pasta to the slow cooker for the last 5 minutes of cooking.
    • To aid thickening, leave the lid off for the last hour of cooking.

    🍴 Serving suggestions

    I usually serve the slow cooker chicken fajitas with warm tortilla wraps, grated cheddar, guacamole, salsa, soured cream, lime wedges, and a side of baked carrot fries or air fryer sweet potato fries.

    Any leftover chicken fajita mix can be served on a bed of rice or stirred through pasta.

    A fajita wrap on a plate with grated cheddar, sour cream and salsa.

    🥡 Storage

    Store - the cooked fajita chicken mix can be stored in the fridge for up to 3 days.

    Freeze - for up to 3 months. Once cooled, place the leftovers in a freezer-safe container.

    ❓ FAQS

    Can you put raw chicken breast in the slow cooker?

    Yes! I very rarely brown meat before putting it in the slow cooker, although some people do prefer to seal chicken in a frying pan first to allow excess moisture to escape. If you're using thickening granules at the end of cooking, this isn't really an issue. If however you can't get hold of thickening granules, and don't want to use cornflour to thicken the sauce at the end of cooking, then you might benefit from sealing the chicken first.

    What toppings do you put on fajitas?

    Traditionally, soured cream, salsa, guacamole and grated cheese are used as fajita toppings. I sometimes add sliced red onion and chopped coriander too.

    😋Related recipes

    Some more family-friendly slow cooker recipes to try:

    • Slow Cooker Pork Chops
    • Slow Cooker Hunters Chicken
    • Slow Cooker Beef Goulash
    • Slow Cooker Pulled Beef
    • Slow Cooker Macaroni Cheese

    🍽️ More family-friendly recipes

    • Bucatini all'Amatriciana.
      Easy Bucatini all'Amatriciana Recipe
    • Spinach and blue cheese pasta
      Creamy Spinach and Blue Cheese Pasta
    • Chicken bolognese garnished with parsley.
      Easy Chicken Bolognese Recipe
    • Leftover roast beef stroganoff with parsley.
      Easy Leftover Roast Beef Stroganoff Recipe

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    Recipe

    slow cooker chicken frajitas in a crockpot.
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    5 from 9 votes

    Slow Cooker Chicken Fajitas

    Get ready for a delicious and easy dinner with these slow cooker chicken fajitas! Perfect for busy weeknights, this healthy meal is a family favourite. Just throw all of the ingredients into your slow cooker basin, switch on and cook for 6 hours!
    Course Main Course
    Cuisine Mexican
    Prep Time 10 minutes minutes
    Cook Time 6 hours hours
    Total Time 6 hours hours 10 minutes minutes
    Servings 6
    Calories 232kcal
    Author Beth Sachs
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    Equipment

    • Slow Cooker
    • Kitchen Scales
    • Chopping Board
    • Knife
    • Measuring Spoons

    Ingredients

    Metric - US Customary
    • 1 kg Chicken Breasts cut into bite size pieces
    • 1 Onion sliced
    • 4 Garlic Cloves peeled and chopped
    • 3 Red and or Yellow Peppers sliced
    • 2 tablespoon Tomato Puree
    • 3 tablespoon Thickening Granules

    Fajita Seasoning

    • 1 teaspoon Chilli Flakes
    • 1 tablespoon Cumin
    • 1 tablespoon Smoked Paprika
    • 2 teaspoon Oregano
    • ½ teaspoon Cinnamon
    • 2 teaspoon Ground Coriander
    • 1 teaspoon Salt

    Instructions

    • Place the sliced onion, peppers and garlic in the slow cooker basin.
      1 Onion, 4 Garlic Cloves, 3 Red and or Yellow Peppers
    • Add the chicken breast pieces on top.
      1 kg Chicken Breasts
    • Mix up the fajita seasoning in a small bowl and add this to the slow cooker with the tomato puree. Give everything a good stir.
      1 teaspoon Chilli Flakes, 1 tablespoon Cumin, 1 tablespoon Smoked Paprika, 2 teaspoon Oregano, ½ teaspoon Cinnamon, 2 teaspoon Ground Coriander, 1 teaspoon Salt, 2 tablespoon Tomato Puree
    • Cook on low for 6-8 hours. Stir in 3 tablespoon of thickening granules at the end of cooking or alternatively spoon the chicken fajita mix into a saucepan and add a cornflour paste. Bring to the boil on the hob and allow to thicken. I suggest using 2 tablespoon of cornflour with just enough water to make a paste.
      3 tablespoon Thickening Granules

    Notes

    The nutritional information provided is approximate and is calculated using online tools. Information can vary depending on various factors, but we have endeavoured to be as accurate as possible.
    Please note calorie totals do not include toppings and tortilla wraps.
    Nutrition Facts
    Slow Cooker Chicken Fajitas
    Amount per Serving
    Calories
    232
    % Daily Value*
    Fat
     
    5
    g
    8
    %
    Saturated Fat
     
    1
    g
    6
    %
    Cholesterol
     
    107
    mg
    36
    %
    Sodium
     
    594
    mg
    26
    %
    Potassium
     
    859
    mg
    25
    %
    Carbohydrates
     
    8
    g
    3
    %
    Fiber
     
    3
    g
    13
    %
    Sugar
     
    4
    g
    4
    %
    Protein
     
    37
    g
    74
    %
    Vitamin A
     
    2626
    IU
    53
    %
    Vitamin C
     
    81
    mg
    98
    %
    Calcium
     
    44
    mg
    4
    %
    Iron
     
    2
    mg
    11
    %
    * Percent Daily Values are based on a 2000 calorie diet.
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    More Easy Slow Cooker Recipes

    • Slow cooker rolled lamb breast cut into slices with roast potatoes and stuffing.
      Slow Cooker Lamb Breast Recipe
    • Slow cooker red cabbage in a serving dish.
      Easy Slow Cooker Red Cabbage Recipe
    • Sliced slow cooker roast beef.
      Easy Slow Cooker Roast Beef Recipe
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      Slow Cooker Stewed Apples Recipe

    Reader Interactions

    Comments

    1. veenaazmanov

      October 06, 2020 at 1:13 pm

      5 stars
      Simple and yet so flavorful. Love the Slow Cooker option, Makes life simple and quick and easy too.

      Reply
    2. Beth

      October 06, 2020 at 1:19 pm

      5 stars
      This looks so delicious and yummy! I can't wait to make this! My husband is going to love this recipe!

      Reply
    3. Dannii

      October 06, 2020 at 1:32 pm

      5 stars
      We love cooking fajitas in the slow cooker for an easy weeknight meal.

      Reply
    4. Pam

      October 06, 2020 at 1:40 pm

      5 stars
      I love cooking in my slow cooker, especially this time of year. Thanks for the great recipe. I'm putting the ingredients on my list right now!

      Reply
    5. Jess

      October 06, 2020 at 1:49 pm

      5 stars
      A favorite meal made in the slow cooker?! What! This is life changing!

      Reply
    6. Jenny Walters

      October 11, 2020 at 7:36 pm

      5 stars
      What a taste sensation! My family loves fajitas too so I just love the sound and simplicity of this. Great family food. Thank you so much for sharing it with #CookBlogShare x

      Reply
    5 from 9 votes (3 ratings without comment)

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    Slow Cooker CHicken Fajitas Pinterest image with text overlay.

    Hi, I'm Beth!

    Mum of three (and two crazy dogs), living in Cornwall, UK. I love creating easy, delicious and fuss-free recipes, perfect for busy families, just like my own.

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