Instant Pot Peppers And Onions Fajitas

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Make these amazing peppers and onions with your Instant Pot!  These Instant Pot fajitas are ready in less than 5 minutes!

Instant Pot Peppers and Onions Fajitas

I love Mexican food and fajitas are no exception! I have a skillet Mexican fajitas recipe on this site that replicates grilled peppers and onions from Chipotle restaurant.  Since the Instant Pot needs liquid for it to come to pressure, I’m using tomato sauce as a liquid to cook peppers and onions in this version of fajitas adapted to the Instant Pot.  Sliced bell peppers and onions are cooked in tomato sauce and seasoned with chili powder and garlic powder – super flavorful!

Instant Pot Peppers and Onions

Making these Instant Pot fajitas is super easy and quick! In fact, you will set your pressure cooking time on the Instant Pot to ZERO, yes 0 minutes :) The way this technique works is that vegetables cook during the time the Instant Pot is coming to pressure (which takes about 5 minutes).  Once it comes to pressure, there is no need to cook them more, otherwise they’ll turn mushy.  I used the same technique on many other quick-cooking vegetables – see my recipes for Instant Pot broccoli, Instant Pot cauliflower, Instant Pot green beans and Instant Pot asparagus!

Instant Pot fajitas recipe

Instant Pot truly makes everything easy. Just dump sliced bell peppers, sliced onions, tomato sauce, chili powder and garlic powder in the Instant Pot, press the button and in less than 5 minutes have perfectly cooked Mexican fajitas! And if you’d like to make an Italian version of peppers and onions instead of Mexican, skip the chili powder and add 1 tsp of Italian seasoning instead :)

Pressure Cooker Peppers and Onions

These peppers and onions fajitas are very versatile.  You can serve them as a vegetable side dish, over rice (Instant Pot cilantro-lime rice is an awesome option), in tacos or taco salad, burritos, salads, or as part of meal prep (see my Mexican mason jar salad recipe that uses fajitas as one of the layers)!

Mexican fajitas

You can mix these peppers and onions with chopped rotisserie chicken to make chicken fajitas, or use them as building blocks for recipes such as chicken fajitas quinoa bowl or Mexican pasta fajitas.  So yummy!

Instant Pot peppers and onions recipe

If you like these Instant Pot peppers and onions fajitas, you will love these other easy recipes:

Instant Pot Cilantro Lime Rice – this rice tastes exactly like the one from Chipotle! Serve these fajitas over cilantro-lime rice – so good!

how to make cilantro lime rice in the Instant Pot

Instant Pot Salsa Chicken – this is one of the easiest Instant Pot Mexican main dishes! Spicy shredded salsa chicken can be used in tacos, burritos, on top of rice, you name it!

Authentic Guacamole Recipe – this is the only guacamole recipe you’ll ever need! Truly the best ever! Tastes like the one from a Mexican restaurant!

Instant Pot Baked Apples – stuffed with cinnamon and raisins, these baked apples will become your favorite Instant Pot dessert! They are very healthy too!

Instant Pot Burgers – these Instant Pot burgers are so juicy and tender! So how do you keep the patties separate? See the recipe to find out the secret :)

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Instant Pot Peppers And Onions Fajitas

Let your Instant Pot transform your kitchen into Chipotle :) These Instant Pot peppers and onions fajitas are ready in less than 5 minutes and taste amazing!
Prep Time5 minutes
Cook Time5 minutes
Total Time10 minutes
Course: Instant Pot, Side Dish
Cuisine: Mexican
Keyword: bell peppers, fajitas, onions
Cooking Method: Instant Pot
Diet: Gluten-Free, Keto / Low-Carb, Paleo, Vegan, Vegetarian
Servings: 4 servings
Calories: 89kcal


  • 4 bell peppers sliced into strips
  • 2 onions sliced
  • 15 oz tomato sauce
  • 2 tsp chili powder
  • 1/2 tsp garlic powder

Recommended Kitchen Tools (click the links below to see the items used to make this recipe)


  • Pour the tomato sauce into Instant Pot. Add bell peppers and onions (put them on top of tomato sauce without mixing). Sprinkle with chili powder and garlic powder.
  • Close the Instant Pot lid and turn the valve to a Sealing position. Press the "Pressure Cook" or "Manual" button and set the time to ZERO (0) minutes. Peppers and onions will cook just enough during the time Instant Pot is coming to pressure.
  • When the timer beeps, quick release (QR) the steam. Mix everything in the pot and serve.
  • These peppers and onions fajitas can be served hot or cold.


For the Italian-style version, omit the chili powder and add 1 tsp of Italian seasoning instead.
Click here for all my Instant Pot recipes
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Calories: 89kcal | Carbohydrates: 19g | Protein: 3g | Fat: 1g | Saturated Fat: 1g | Sodium: 586mg | Potassium: 710mg | Fiber: 6g | Sugar: 12g | Vitamin A: 4586IU | Vitamin C: 163mg | Calcium: 39mg | Iron: 2mg
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  1. Absolutly the best Pepper and Onions I’v ever had, Fajitas are back in our dinner rotation. Thank you for the recipe.

  2. 5 stars
    I was looking for a recipe for peppers and onions that didn’t involve an oven (current temps in the high 90’s and humid). I pressure cooked chicken quarters in another pot, while they were on natural release, I started these up. Timing was perfect, will be making these again. Super easy to tweak for slightly different flavor too. I added more peppers and onions, a few cloves of fresh garlic and some tomato paste to thicken it at the end. Served over rice with chicken, so yummy. Thank you!

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