30-Minute Sheet Pan Chicken Fajitas with Avocado Cilantro Lime Crema

Name: 30-Minute Sheet Pan Chicken Fajitas with Avocado Cilantro Lime Crema
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Ingredients: 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; 2 medium avocados; 1/2 cup cilantro (removed from stems); 1/2 cup plain Greek yogurt; 1 small lime (juice of); 1 clove garlic (minced); 1-2 tbsp sriracha (or more/less to taste); 1/4 tsp salt; 1-2 tbsp water (to thin); cilantro; lime juice; shredded cheddar cheese; salsa

by Hannah Magee, RD on Aug 23, 2023 0 comments »

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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.

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!

Fajita Ingredients:

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

chicken breasts
bell peppers
yellow onion
olive oil
homemade fajita seasoning (or a packet of seasoning)
flour tortillas

For the avocado cilantro lime crema, you’ll need:

avocados
plain greek yogurt
cilantro
lime juice
sriracha

ingredients on a wooden board including: olive oil in a dish, an onion, three bell peppers, and a dish of fajita seasoning

Cooking Fajitas in the Oven:

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

sliced bell peppers and onion on a wooden cutting board — Slice bell peppers and onion into strips.

sliced chicken breasts on a cutting board — Slice bell peppers and onion into strips.

How to Make Homemade Fajita Seasoning:

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

spices for fajitas in a bowl — Spices for homemade fajita seasoning.

homemade fajita seasoning in a bowl — Spices for homemade fajita seasoning.

Avocado Cilantro Lime Crema:

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

ingredients in a food processor — Add sauce ingredients to a blender or food processor.

avocado cilantro lime sauce in a food processor — Add sauce ingredients to a blender or food processor.

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.

Sheet Pan (Set of 2)

Made of pure aluminum which will never rust for a lifetime of durability. For sweet or savoury baking; from cookies to sheet pan dinners, this is the pan you’ll reach for.

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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.