Here’s my go-to Instant Pot chicken fajitas recipe, with tender chicken strips, colorful bell peppers, and onions, all seasoned with a simple blend of Mexican spices that adds just the right amount of flavor.
These fajitas have become my family’s favorite weeknight dinner solution when we’re short on time but still want something tasty. I often double the recipe because everyone loves having leftovers for lunch the next day. Nothing better than quick and easy Mexican food, right?
Why You’ll Love These Chicken Fajitas
- Quick cooking time – Ready in just 20-25 minutes, these Instant Pot fajitas are perfect for busy weeknights when you need dinner on the table fast.
- One-pot meal – Everything cooks together in your Instant Pot, which means less cleanup and fewer dishes to wash after dinner.
- Basic ingredients – You only need chicken, bell peppers, onions, and some basic seasonings – ingredients you can easily find at any grocery store.
- Healthy dinner option – Packed with lean protein and colorful vegetables, these fajitas are a nutritious choice that’s naturally low in calories and high in nutrients.
- Meal prep friendly – Make a batch at the beginning of the week and enjoy it in different ways – in tortillas, over rice, or on top of salads.
What Kind of Chicken Should I Use?
For this Instant Pot recipe, boneless, skinless chicken breasts are your best bet since they cook quickly and evenly under pressure. While you could use chicken thighs instead, breasts are the traditional choice for fajitas and tend to soak up the seasonings really well. When shopping, look for breasts that are similar in size so they’ll cook at the same rate – aim for pieces that are about 6-8 ounces each. It’s important to slice your chicken against the grain into strips about 1/2 inch thick, which helps keep the meat tender and easy to bite into when it’s done cooking.
Options for Substitutions
This easy fajita recipe can be adapted with several ingredient swaps if needed:
- Chicken breasts: You can easily swap chicken breasts with chicken thighs, which actually stay a bit juicier. For a non-chicken option, try thinly sliced beef flank steak or even portobello mushrooms for a vegetarian version.
- Bell peppers: Any color bell pepper works great here! If you’re short on peppers, you can use what you have or mix in other vegetables like sliced zucchini or mushrooms. Just keep the total amount of vegetables similar to the original recipe.
- Vegetable oil: Feel free to use any neutral cooking oil like canola, avocado, or even olive oil. Since it’s optional, you can skip it altogether, though it does help with the texture.
- Fajita spice mix: Out of fajita seasoning? Make your own by mixing 1 tablespoon chili powder, 1 teaspoon each of cumin and paprika, and ½ teaspoon each of garlic powder, onion powder, and salt.
- Water: You can use chicken broth instead of water for extra flavor, or even lime juice mixed with water for a citrusy kick.
Watch Out for These Mistakes While Cooking
The biggest challenge with Instant Pot fajitas is avoiding the dreaded “mushy vegetables” syndrome – to prevent this, don’t slice your peppers and onions too thin, as they’ll continue to soften during the pressure release. A common error is adding too much liquid, but stick to just 1/4 cup of water since the vegetables and chicken will release their own juices during cooking. To get the best texture, resist the urge to stir everything together before cooking – instead, layer your ingredients with the chicken at the bottom, followed by the seasonings, and vegetables on top. For maximum flavor without sacrificing texture, use the natural release method for just 5 minutes before doing a quick release, as any longer can lead to overcooked vegetables and chicken.
What to Serve With Chicken Fajitas?
When it comes to serving chicken fajitas, warm tortillas are just the starting point for a really fun meal! Load up your table with toppings like shredded cheese, sour cream, guacamole, and fresh pico de gallo so everyone can build their perfect fajita. A side of Mexican rice or black beans makes the meal more filling and helps soak up all those tasty fajita juices. For a complete spread, I love adding some chips and salsa to snack on while the fajitas are being assembled – it’s impossible to have too many Mexican-inspired sides on the table!
Storage Instructions
Keep Fresh: These Instant Pot chicken fajitas make great leftovers! Just pop them in an airtight container and keep them in the fridge for up to 4 days. The flavors actually get even better as they sit together, making them perfect for meal prep.
Freeze: If you want to save some for later, let the fajita mixture cool completely, then pack it in freezer-safe containers or bags. It’ll stay good in the freezer for up to 3 months. Pro tip: freeze the filling in portion-sized containers to make weeknight dinners super easy!
Warm Up: When you’re ready to eat your leftover fajitas, just heat them up in a skillet over medium heat for about 3-4 minutes, stirring occasionally. You can also use the microwave – just heat in 30-second intervals until they’re hot throughout. Add a splash of water if needed to keep things moist.
| Preparation Time | 10-15 minutes |
| Cooking Time | 4 minutes |
| Total Time | 20-25 minutes |
| Level of Difficulty | Easy |
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
- Calories: 400-450
- Protein: 50-55 g
- Fat: 10-15 g
- Carbohydrates: 30-35 g
Ingredients
- 1 green bell pepper (sliced)
- 1 tbsp vegetable oil (or olive oil)
- 1 yellow bell pepper (sliced)
- 2 large chicken breasts (thinly sliced against the grain for tenderness)
- 1 red bell pepper (sliced)
- 1/4 cup water
- 3 tbsp fajita spice mix (I like McCormick’s Hot Chili variety for extra kick)
- 1 large onion (thinly sliced)
Step 1: Prepare Ingredients in the Instant Pot
Place all of your chosen ingredients into the Instant Pot.
This includes the chicken and peppers, along with any spices you’re using.
Mix everything together thoroughly, ensuring that the chicken and peppers are well coated in the spices.
This will help infuse the flavors during cooking.
Step 2: Setup and Cook in the Instant Pot
Seal the lid of the Instant Pot, and make sure that the valve is set to the sealing position.
Select the manual or pressure cooker setting on high and set the timer for 4 minutes.
This short cooking time is sufficient to ensure the chicken is cooked through while remaining tender.
Step 3: Release Pressure and Serve
Once the cooking cycle is complete, perform a quick release by carefully moving the valve to venting.
Be cautious as the steam will be very hot.
Once all the pressure has been released, open the lid and check the dish.
Step 4: Assemble and Garnish the Dish
Serve the cooked chicken and pepper mixture on warmed tortilla bread.
If you are following a gluten-free diet, be sure to use gluten-free tortillas.
Top with pico de gallo (or a simple tomato onion salad) for freshness.
Add sliced avocado, cilantro leaves, and a squeeze of lime or lemon juice for added flavor.
Enjoy your delicious and easy meal!