Crock Pot Steak Fajitas

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Make the best, most delicious Crock Pot Steak Fajitas with this super easy recipe! Place beef, onions, bell peppers, and spices in the crock pot and forget about it! Nothing beats slowly simmered beef put into warm tortillas and garnished with your favorite tex mex toppings. 

slow cooker fajitas


This here Crock Pot Steak Fajitas is what we ate for 2 days last week. 

If you are as busy as a bee, and if you don’t mind juicy and tender meat that literally shreds itself, this is your kind of recipe. Unless you’re a vegetarian, then, I guess this is not your kind of recipe. 😀 

But, if you love your meat, and your peppers, and your onions, AND fajitas!? Turn on the crockpot and git ‘er done!

Also? Make sure you use your favorite Salsa because, essentially, we’re cooking and marinating the entire meat in said salsa. It better be good, you know?

These slow cooked Beef Fajitas are great for those Saturday afternoon get togethers when you don’t have any idea when anyone is arriving but you don’t want to be cooking when they get home. 

The Crock Pot was one of the first major kitchen appliances that I bought and I am in love with it. It solves all problems. I throw all the ingredients in the pot, turn it on, and 6 hours later we got dinner!  Like this awesome recipe for Spinach and Feta Crock Pot Lasagna 😋 

beef fajitas in a crock pot


  • Flank steak 
  • yellow, onion
  • red bell pepper
  • green bell pepper
  • Tomato Salsa
  • beef broth
  • 2 tablespoons of my Fajitas Seasoning Mix

flank steak in crock pot for fajitas


  1. You’ll want to get started by cutting the  flank steak into 6 equal portions and place in your slow cooker. 

  2. Next, add the onions and peppers to a 6.5-quart (or larger) slow cooker. Then, pour in the tomato salsa and add beef broth.

  3. Add fajita seasoning and mix everything together.

  4. Cover and cook on HIGH for 4 to 5 hours or on LOW for 6 to 8 hours.

  5. Shred the cooked beef, then, stir it back into the slow cooker. Serve.

Fajita Toppings Ideas:

  • Salsa
  • Sour Cream
  • Salad Leaves
  • Grated/shredded cheese
  • Sliced Jalapenos
  • Cilantro
  • Sliced Avocado

How Long Can I Leave Food In the Crock Pot?

  • As with food cooked any other way, cooked crock pot foods should not be left at room temperature any more than an absolute maximum of 2 hours. 

How Do You Store Leftovers In A Crock Pot? 

  • I like to store my leftovers in shallow containers and refrigerate them within two hours.
  • One of the best parts of your crock pot meal is the leftovers, but make sure you are storing them safely and eating them in a timely manner to reduce your risk of food poisoning. No one wants that. 😐 

How Do I Freeze These Crock Pot Fajitas? 

  • Store all leftovers in a freezer-safe glass container or large Ziploc freezer bags.
  • Label it and keep in the freezer for 2 months.
  • To defrost, completely thaw in the refrigerator before reheating. 

How To Reheat Food in The Crock Pot

  • We love this Crock Pot Beef Fajitas recipe and we always end up having it 2 days in a row. Do not reheat food in the slow cooker because it takes too long to reach a safe temperature. Use the stovetop or microwave for reheating.
  • However, you can use a slow cooker to keep food hot up to 2 hours before serving. 

shredded beef in crock pot

Did you know? 
  • In Spanish, the word fajita translates to “belt or “girdle” in English. 😊 


5 from 6 votes
slow cooker fajitas

Crock Pot Steak Fajitas

6 6 6
WW Freestyle: 5
Prep Time10 mins
Cook Time5 hrs
Total Time5 hrs 10 mins
Make the best, most delicious Steak Fajitas with this super easy recipe! Place beef, onions, bell peppers, and spices in the crock pot and forget about it!
Course: Dinner
Cuisine: American/Southwest
Servings: 6 serves
Calories: 266


  • 2 pounds flank steak
  • 1 large yellow onion, sliced
  • 1 red bell pepper, sliced
  • 1 green bell pepper, sliced
  • 2 cups Tomato Salsa
  • 1/4 cup beef broth
  • 2 tablespoons Fajitas Seasoning Mix


  • Cut flank steak into 6 equal portions and place in your slow cooker. 
  • Add onions and peppers to the slow cooker.
  • Pour in the tomato salsa and add beef broth.
  • Add fajita seasoning and mix everything together.
  • Cover and cook on HIGH for 4 to 5 hours or on LOW for 6 to 8 hours.
  • Transfer meat to a cutting board; using two forks, shred the beef.
  • Stir beef back into the slow cooker.
  • Serve hot with flour tortillas.


Nutrition Facts
Crock Pot Steak Fajitas
Amount Per Serving
Calories 266 Calories from Fat 72
% Daily Value*
Fat 8g12%
Saturated Fat 3g15%
Cholesterol 91mg30%
Sodium 713mg30%
Potassium 958mg27%
Carbohydrates 14g5%
Fiber 5g20%
Sugar 6g7%
Protein 35g70%
Vitamin A 1194IU24%
Vitamin C 45mg55%
Calcium 144mg14%
Iron 5mg28%
* Percent Daily Values are based on a 2000 calorie diet.

Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.

Keywords: crock pot beef recipe, crock pot dinner ideas, easy beef dinner ideas, fajitas recipe, flank steak recipe, healthy dinner recipes, low carb dinner, steak fajitas

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30 Responses
  1. Pam

    Great. I used London broil because that’s what I had. Ended up with shredded beef which suited me and my husband just fine!

  2. David

    Hard pass!!! Very disappointed. Maybe with a skirt steak or a sirloin but Flank Steak doesn’t belong in fajitas. Wrong texture and wrong flavor for fajitas. Thank you for the try but being from Texas I would say this is far from being fajitas. My apologies for being brutally honest but I just felt like this idea would have been better with beans and ground beef and maybe some chorizo and made kind of a stew out of it.

  3. MariaMia

    Since I started working from home, my crockpot is my BFF…just throw it in and ta da! Who would’ve known I could make delicious beef fajitas without a grill! I just fired up the crockpot and I cant wait to taste the goodness! Thank you for this recipe!!!!

    1. Katerina Petrovska

      I would suggest, if possible, to stick with using flank steak for a fajitas recipe. Flank steak is what is used for fajitas because it cooks in just minutes, while chuck roast is best for things like pot roast or beef stew.
      Having said that, since you’re cooking the fajitas in the slow cooker, yes, you can use chuck roast, but because chuck roast needs to cook a lot longer, you’ll want to cook it on the Low setting for about 9 to 10 hours. Then, take it out, shred it, and stir it back in the slow cooker so to mix with the rest of the ingredients.
      I hope this helps. 😊

  4. carol

    made this last night and it was a hit! i also added mushrooms. my son said, mom put this on the dinner menu.

    I would like to try chicken breast next time, how much chicken would you recommend?

    thank you!

    1. Katerina Petrovska

      That’s great! Happy you enjoyed it. 😊
      For chicken, I’d go with 6 chicken breasts, or around 2 pounds.

  5. Jeanine

    I am making these for dinner tonight. I cut everything up last night (green and red peppers, onion, and the steak) and put in a storage bag in the refrigerator overnight. Threw it all in the crockpot this morning and added the salsa and beef broth. It smelled so good all day. I just opened it to stir it and try it and it is AMAZING!!

  6. Fawad

    Oh I love fajitas
    and am trying this recipe out, hmm maybe in a couple of days.
    and will share my experience here.
    Thanks for sharing 🙂

  7. Stella page

    Hello Katerina! This recipe looks delicious! Do you think I could freeze it after I assembled all the ingredients? Trying to find meals for my daughter after baby born….thanks!

    1. Katerina Petrovska

      Hi Stella! You can definitely freeze this and enjoy it at a later time. Congrats to your daughter!! Happy New Year!

  8. Maureen | Orgasmic Chef

    It’s nearly summer and I’m getting all sorts of wintery recipes from up north. Even in the summer, I use my slow cooker. I put it in the laundry room/store room and there’s no heat in the kitchen.

    Now… I LOVE fajitas. Not a lot of Mexican or even Spanish food where we live in Australia so I’ve always made my own. What you’ve done here means I have more time to work and don’t have to stand over a hot stove. Cool!

    1. Katerina Petrovska

      Hi Maureen!!

      I was in Melbourne about 10 years ago and I remember trying to find a taco place for hours… no luck! 😀

  9. Rachel Cooks

    This would be great for those Saturday afternoon get togethers when you don’t have any idea when anyone is arriving but you don’t want to be cooking when they get there. I’m going to try it with chicken or maybe a pork loin roast??

  10. Liz @ Floating Kitchen

    Oh I’m tight with my slow cooker. It was one of the first major kitchen appliances that I bought and I love it. It solves all problems. These fajitas look amazing!

  11. Anna @ Crunchy Creamy Sweet

    My slow cooker and I are BFFs too right now! Adding these fajitas to our menu! They look soooooo goooood!

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Katerina of Diethood
Hey There!
I'm Katerina, a cookie-maker & picture-taker! For me, eating is a moment to share, an enjoyment, a passion. I hope you enjoy my recipes!

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