How to Make Instant Pot Sous Vide Steak Fajitas

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Did you know the Instant Pot Ultra can make sous vide recipes? These Instant Pot Steak Fajitas with melt in your mouth, yet they’re full of amazing flavor. 

Plate of steak fajitas made in the Instant Pot with bell peppers and onions

I absolutely love eating fajitas. However, they are so messy to make at home even though they’re delicious homemade, so we’ll often order them on the rare occasion we go out to eat, usually at a Mexican restaurant..

I recently learned that you can make Steak Fajitas in the Instant Pot Duo Evo or any of the other models that feature the Sous Vide function (check out this Instant Pot comparison chart). While there are a few extra steps when making sous vide recipes, it’s so worth it.

The meat comes out super tender and flavorful and you don’t have the huge mess of food popping all over the stove to contend with. You’ll find that most meats come out with a wonderful texture when you cook them using the sous vide method.

If you need the perfect side dishes to serve with your fajitas, make our Instant Pot Spanish Rice and Instant Pot Refried Beans recipes!

Instant Pot Steak Fajitas with flour tortillas, bell peppers and onions

Melt in Your Mouth Instant Pot Sous Vide Steak Fajitas

Learn how to make the best steak fajitas in the Instant Pot with the sous vide feature.
4.50 from 4 votes
Print Recipe
Prep Time: 25 minutes
Cook Time: 2 hours 10 minutes
Total Time: 2 hours 35 minutes
Recipe Servings: 6



  • Instant Pot Ultra


  • Preheat your Instant Pot Ultra to 135° F.

For the flank steak

  • Combine all spices, olive oil, garlic and lime juice in a small bowl.
  • Pour this mixture into a Sous vide bag.
  • Add the steak, turning it in the bag several times to thoroughly coat.
  • Lay the cilantro across the top of the steak, and seal the bag. It’s important to remove as much air as possible. Vacuum sealing is preferred, but not necessary as you can also use the water displacement method. To do this, slowly lower the bag into water, keeping the open top above the surface. The water pressure will force the air out of the bag, allowing you to seal it once removed. 

For the peppers and onions

  • Slice the peppers into strips.
  • Halve the onions, and cut to similar size as the pepper strips, breaking apart any larger chunks that stick together.
  • Toss the veggie strips in a large bowl with the olive oil, add to another Sous vide bag, and seal. For this step more than with the steak, vacuum sealing is preferred. If that isn’t an option, you can add a scant 1/2 to 3/4 cup of chicken broth to the veggies, allowing you to use the water displacement method to effectively remove the air.
    Instant Pot Sous Vide Steak Fajita ingredients in bags waiting to go into the Instant Pot Ultra.
  • Submerge both bags in the Instant Pot, close the lid and set for 2 hours.
  • Just before done, preheat your broiler. Once finished, carefully remove both bags and pat dry.
  • Using a broiler pan, or similar sheet, cut open the veggies, discarding the broth if used, and spread them evenly over the pan, leaving room for the steak.
  • Remove the steak from the bag, discard the cilantro, and place next to the veggies.
  • Broil for approximately 2-4 minutes or until just starting to brown and char, turn the steak, mix the veggies with tongs, and broil for another couple minutes.
  • Transfer the steak to a cutting board and let rest for 5 minutes, then slice thinly against the grain.
    Instant Pot Sous Vide Steak on a cutting board sliced into strips for fajitas.
  • Serve on warm flour tortillas with the peppers and onions, accompanied by avocado slices, and fresh lime wedges for squeezing.
    Steak, bell peppers and onions with sour cream on a white dinner plate

Nutrition Information Per Serving

Calories: 387kcal | Carbohydrates: 33g | Protein: 14g | Fat: 24g | Saturated Fat: 4g | Cholesterol: 23mg | Sodium: 838mg | Potassium: 840mg | Fiber: 9g | Sugar: 7g | Vitamin A: 2467IU | Vitamin C: 103mg | Calcium: 90mg | Iron: 3mg

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