This sheet pan chicken fajitas recipe will be your new favourite easy and healthy dinner meal. In just 30 minutes you can have juicy chicken fajitas made with tender chicken breast and flavourful veggies seasoned with easy homemade fajita seasoning. Its all cooked in the oven on a single sheet pan, and served with a quick and delicious avocado cilantro lime sauce.

sheet pan with chicken and vegetables seasoned with homemade fajita seasoning

About These Sheet Pan Fajitas:

If you’ve been around for a while, you know I love a good fajita recipe. One of my most popular blog posts is my Easy Tofu Fajitas recipe, and I also published these Healthy Sheet Pan Shrimp Fajitas that are juicy, flavourful, and just as easy.

Now if you’ve never tried sheet pan chicken fajitas before, this recipe is surely going to change the game. What I love about sheet pan meals is that they’re a quick and easy way to get a healthy dinner on the table.

I have a variety of healthy sheet pan recipes for you! Try my Sheet Pan Shrimp and Vegetables, or this drool-worthy Sheet Pan Pesto Chicken and Potatoes.

This recipe will be on your table in 30 minutes, and it’s packed with nutrition and flavour, thanks to the 5-minute homemade fajita seasoning and delicious avocado cilantro lime crema.

sheet pan with chicken and vegetables seasoned with homemade fajita seasoning

Are These Healthy Chicken Fajitas?

As a Registered Dietitian, one of my goals is to share simple and healthy recipes that are just as delicious as they are easy to make. These sheet pan fajitas check those boxes! Let me tell you why.

  • They’re high in protein. Chicken is a fantastic source of lean protein (meaning its low in saturated fat). In addition to protein, chicken offers key micronutrients like iron, vitamin B12, and vitamin B6.
  • The veggies add important nutrients. Bell peppers are rich in vitamin C (they contain more than oranges!). Not only is vitamin C key for functions like maintaining a strong immune system, it also helps our bodies absorb the iron we get from the chicken in this recipe! Neat, right?
  • They’re lower in sodium than fajitas made with packaged fajita seasoning. Most of the sodium in the North American diet comes from packaged foods. Making our own fajita seasoning (it’s super easy, I promise) tastes just as good, with way less sodium.
  • The avocado cilantro crema adds healthy fats. To create a balanced meal, it’s important to consider a source of healthy fats. Luckily, the avocado cilantro sauce on these fajitas is rich in monounsaturated fats, thanks to the avocados!
sheet pan with chicken and vegetables seasoned with homemade fajita seasoning

Fajita Ingredients:

To make these one-pan chicken fajitas, you’ll need:

For the avocado crema, you’ll need:

  • avocados
  • plain greek yogurt
  • cilantro
  • lime juice
  • sriracha

Cooking Fajitas in the Oven:

Making these sheet pan baked chicken fajitas is easy! Here’s what to do:

How to Make Homemade Fajita Seasoning:

To make the homemade fajita seasoning, just combine all of the fajita seasoning ingredients together.

Avocado Cilantro Lime Crema:

Preparing the Avocado Crema takes less than 5 minutes, and you can do it while the chicken and vegetables bake.

green avocado cilantro sauce in a dish

Is this Recipe Gluten-Free?

This recipe is entirely gluten-free, except for flour tortillas. So if you have celiac disease or you follow a gluten-free diet, I’d recommend substituting flour tortillas with a gluten-free option that works for you.

The fajitas recipe is dairy free with the exception of the cilantro avocado sauce, which does contain greek yogurt. If you are dairy-free, I’d recommend just omitting the yogurt in the sauce and adding an extra avocado.

Storing Leftovers:

If you have leftovers, I recommend storing the fajita mix (chicken, peppers and onions) separate from the avocado cilantro sauce. Store each in separate airtight containers in the fridge. The fajita mix will keep up to 4 days, and the sauce will keep up to 1 week (though it may brown slightly due to oxidation).

For the tortilla shells, keep sealed in their packaging in a cool, dry place. To keep them for longer, you can store them in the freezer.

two fajitas on a plate with a dish of avocado cilantro crema beside it

Connect with Hannah Magee, RD!

I hope you love this recipe as much as I do. If you try it, let me know what you think by leaving a rating and a review in the comments below.

Oh, and be sure to take a photo and tag me at @hannahmagee_rd so I can re-share on my stories!

sheet pan with chicken and vegetables seasoned with homemade fajita seasoning

30-Minute Sheet Pan Chicken Fajitas with Avocado Crema

5 from 1 rating

Ingredients

For the Sheet Pan Chicken Fajitas:

  • 2 lbs chicken breasts, boneless and skinless, approx. 3 medium chicken breasts
  • 3 medium bell peppers, of any colour
  • 1 medium yellow onion
  • 2 tbsp olive oil
  • 1 batch homemade fajita seasoning

For the Avocado Cilantro Lime Crema:

Optional Toppings:

  • cilantro
  • lime juice
  • shredded cheddar cheese
  • salsa

Instructions 

Did you make this recipe?Be sure to take a photo and tag me at @hannahmagee_rd so I can see!