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Slow Cooker Steak Fajitas

No need to have a screaming hot skillet, just use your slow cooker instead. These Slow Cooker Steak Fajitas will become a regular in your dinner time routine.

Skirt steak in the slow cooker - Slow Cooker Steak Fajitas

How about making up some delicious fajitas without having to fire up the grill, deal with blazing hot pans or even going out to dinner? I admit, I was skeptical this would work. But I keep seeing all the cute videos on Facebook of people making slow cooker fajitas and finally I was curious enough to give a try. Really, what’s there to lose? Certainly it would at least be edible, I thought. Well good news! It was more than edible! They turned out delicious and I will totally be making these again!

Sliced bell peppers on top of skirt steak - Slow Cooker Steak Fajitas

This is a great layered meal and I love this as a great way to use fresh veggies! Peppers cook up really well in the slow cooker and become tender without getting mushy.

Onions and mushrooms layered over skirt steak - Slow Cooker Steak Fajitas

Use some nice hearty baby bella mushrooms and crispy red onions! Yum!

Marinade whisked in a bowl - Slow Cooker Steak Fajitas

And this sauce/marinade? Can’t you just tell how delicious it’s going to be by just looking at it?! Honey, lime juice, cilantro, chili powder….. seriously, it makes this dish.

Pouring marinade over skirt steak - Slow Cooker Steak Fajitas

Now that I know this whole fajita/slow cooker thing works, the only question is, what kind to try next!!!

Slow Cooker Steak Fajitas

Slow Cooker Steak Fajitas

Jennifer Draper
No need to have a screaming hot skillet, just use your slow cooker instead. These Slow Cooker Steak Fajitas will become a regular in your dinnertime routine.
4.64 from 19 votes
Prep Time 15 minutes
Cook Time 4 hours
Total Time 4 hours 15 minutes
Servings 4 servings
Calories 379 kcal


  • 1 1/2 pounds skirt steak
  • 2 bell peppers (I used one red and one yellow)
  • 1/2 large red onion
  • 8 oz sliced baby portobello mushrooms
  • 2 tablespoons olive oil
  • Juice of one lime
  • 1 tablespoon honey
  • 1 teaspoon chili powder
  • 1 teaspoon cumin
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon dried cilantro
  • 1/2 teaspoon sea salt
  • 1/4 teaspoon pepper
  • Flour tortillas
  • Sour cream, cheese for serving (optional)


  • Place skirt steak in bottom of slow cooker
  • Remove ribs and seeds from peppers and slice then add to slow cooker on top of steak
  • Peel onion and slice into petals and add to slow cooker
  • Add pre-sliced mushrooms on top
  • Whisk together all remaining ingredients and pour over meat and veggies
  • Cover and cook on high for 3-4 hours or low for 6-8
  • Remove and slice steak and remove veggies from slow cooker (you won't want all the sauce as they would be soggy)
  • Serve with tortillas, sour cream, cheese or as desired
  • I cooked these on high in my 4-quart slow cooker for 8 hours


Need a cool lime squeezer? Simple is best! Mine is yellow but pretty much like this one and works great and is easy to clean!


Calories: 379kcalCarbohydrates: 12gProtein: 38gFat: 20gSaturated Fat: 5gCholesterol: 107mgSodium: 420mgPotassium: 867mgFiber: 2gSugar: 8gVitamin A: 2025IUVitamin C: 77mgCalcium: 22mgIron: 3.9mg
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Important nutritional disclaimer

Slow Cooker Steak Fajitas


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  1. Just put everything in the crock pot. It doesn’t seem like enough marinade. It was about a 1/4 cup of liquid…

  2. 3 stars
    To me, the flavor of the meat was more in line with a burrito, not fajitas. And, the veggies were too mushy. I might make the meat again, but use it for burittos.

  3. 5 stars
    I added liquid smoke to mine and did not add mushrooms I love mushrooms but we don’t use mushrooms with fajitas in Texas 🙂

    1. As long as you are using the correct size of slow cooker for the amount of meat/veggie you add, most likely not. Just make sure your slow cooker is somewhere between 1/2 and 2/3 full and you should be good. If it’s too full, it will take longer for the food to cook.

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