Sheet-Pan Chicken Fajitas With Spicy Avocado Crema Recipe

Julianne De Witt

February 24, 2024 at 11:45 a.m.·7 min read

bowl of chicken and vegetables - Julianne De Witt/Tasting Table

Sheet-pan dinners have become quite trendy over the past few years, and for good reason. "They are the perfect weeknight meal, and using one pan means less mess," as recipe developer Julianne De Witt explains. Here she shares with us "a very quick, easy, and tasty recipe on regular rotation" in her household: sheet pan chicken fajitas that come together with bell peppers, onions, and a smoky spice blend.

This two-fer recipe also includes instructions for how to make an avocado crema that De Witt describes as "so creamy with just the right hint of lime, salt, and seasonings." While true Mexican crema is a slightly different product, this easy recipe handily substitutes it with sour cream, thinned out with a little lime juice. If you decide to amp up your fajitas with some type of spicy salsa or hot sauce, De Witt points out that "the crema will help cut the heat" — not to mention add a cooling creaminess to your tortilla-wrapped dinner.

Gather The Ingredients For Sheet-Pan Chicken Fajitas With Spicy Avocado Crema

ingredients for chicken fajitas - Julianne De Witt/Tasting Table

As far as main ingredients, these fajitas are made with bell peppers, an onion, and boneless skinless chicken breasts. They're seasoned with salt, pepper, chili powder, cumin, smoked paprika, oregano, onion powder, garlic powder, and lime juice. You'll also need a small amount of cooking oil, plus some avocados, sour cream, garlic, and Tajin for the crema. If you want to eat your fajitas wrapped in tortillas, you'll need some of those, as well (De Witt opts for flour ones), while you might also want some shredded cheese and extra lime wedges as toppings.

Step 1: Combine The Crema Ingredients

avocados and sour cream in food processor - Julianne De Witt/Tasting Table

Make the avocado crema: Add avocados, sour cream, lime juice, minced garlic, chile lime seasoning, and 3 tablespoons water to a food processor.

Step 2: Blend And Chill The Crema

green dressing in blender - Julianne De Witt/Tasting Table

Blend on high speed until smooth, then place in the refrigerator until ready to use.

Step 3: Heat Up The Oven

oven temperature dial - Julianne De Witt/Tasting Table

Preheat oven to 400 F.

Step 4: Oil And Season The Vegetables

hand pouring oil on vegetables - Julianne De Witt/Tasting Table

Make the fajitas: Add peppers and onions, 1 tablespoon oil, and half the salt and pepper to a large bowl. Toss to combine.

Step 5: Season The Chicken

hand pouring spices on chicken - Julianne De Witt/Tasting Table

In a separate large bowl, toss chicken with chili powder, cumin, paprika, oregano, onion powder, garlic powder, and remaining salt and pepper.

Step 6: Stir In The Lime Juice And Oil

hand pouring juice on chicken - Julianne De Witt/Tasting Table

Add lime juice and remaining olive oil and toss to combine with tongs.

Step 7: Put The Chicken On The Pan

raw chicken pieces in pan - Julianne De Witt/Tasting Table

Add chicken to one half of a foil-lined baking sheet in a single layer.

Step 8: Add The Vegetables Next

chicken and vegetables in pan - Julianne De Witt/Tasting Table

Add peppers and onions to the other side of the baking sheet.

Step 9: Bake

Bake for 25-30 minutes, or until chicken reaches an internal temperature of 165 F.

Step 10: Warm The Tortillas

foil wrapped package in oven - Julianne De Witt/Tasting Table

In the last 5 minutes of cooking, wrap tortillas in foil and place in the oven to warm.

Step 11: Top The Tortillas With Crema

hand smearing sauce on tortilla - Julianne De Witt/Tasting Table

To assemble, spoon avocado crema onto each tortilla.

Step 12: Add On The Rest Of The Fajita Ingredients, And Enjoy

tortilla with fajita filling - Julianne De Witt/Tasting Table

Top tortillas with chicken, onions, peppers, grated cheese, and lime wedges, and serve right away.

What Other Ingredients Can I Use In Sheet-Pan Chicken Fajitas With Spicy Avocado Crema?

chicken fajita on flour tortilla with green napkin - Julianne De Witt/Tasting Table

De Witt points out that with the modest spice blend and cooling crema, these chicken fajitas really aren't all that incendiary. "For a spicier version, add some chopped jalapeños to your fajitas or serve your favorite hot sauce on the side." If you don't care for any heat whatsoever, though, she also says that you can swap out the Tajin seasoning (which does contain dried chiles) in the crema for salt.

The cheese, too, is something that can be changed to suit your personal preference. De Witt likes to use both white and orange cheddar cheeses here, but you could go with just one or the other of these. You could also use pepper jack (or Monterey Jack, if you don't care for the extra peppers), while De Witt feels that a crumbly cotija cheese could work beautifully as well.

What Can I Do With Leftover Sheet-Pan Chicken Fajitas With Spicy Avocado Crema?

fajita fillings on plate with green napkin - Julianne De Witt/Tasting Table

If you're not going to be able to finish all 4 servings of fajita meat and vegetables in a single sitting, that is no problem, since De Witt declares that "these fajitas will taste even better the next day." She does suggest, however, that you refrigerate them in an airtight container, where she says they should last for up to 4 days. You need not wrap the leftover fajita filling in tortillas, either — why not mix it with rice or pasta or fold it into an omelet?

As for the crema, that will only last for 3 days in the refrigerator. "Be sure to cover the surface with plastic wrap," De Witt advises, as a covering should always help keep avocado dressing from turning brown. The crema, too, can be repurposed in a variety of ways: as a dip for chips, thinned with more lime juice for a creamy salad dressing, or as a topping for tacos, burritos, or quesadillas.