Chicken Fajita Marinade Recipe for Easy Fajitas

If I tried to describe this chicken fajita marinade I might say it is “amazing” “delicious” and “super fresh”  It also happen to be healthy {it’s gluten-free, low in saturated fat, and paleo!}  Not to mention the fact that it is so flavorful, thanks to all that orange, lemon, and lime zest and juice.

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Post last updated 10/01/2026

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The weather may be cooling down, but I’m not quite ready to give up grilling or all the bright flavors of summer.

And lately, I’ve been having a serious moment with these super juicy chicken fajitas. The grill gives the chicken and peppers plenty of smoky char, while all that orange, lemon, and lime keeps everything tasting fresh and vibrant.

The marinade couldn’t be simpler. A handful of citrus, olive oil, chili powder, salt, and pepper is all it takes to turn chicken breasts into juicy, flavorful fajita chicken.

These are great for dinner or entertaining and can be thrown together in just around thirty-forty minutes. What do you think? Is fall the new fajita season? Thinking YESS…with a side of margaritas made with the world’s best tequila?

what makes a great chicken fajita marinade?

The key to a delicious fajita recipe is a vibrant, tangy marinade that flavors both the meat, onions, and bell peppers. 

For this recipe we’re using lots of citrus (the juice and the zest) and some chili powder.

It’s great to give the chicken and vegetables at least a few good hours of marinating time, but if you’re short on time, you can marinate the chicken and vegetables while you wait for the grill to heat up.

This is a very classic, citrus and chile forward marinade. The idea is to have lots of yummy flavors, textures, and colors without too much work.

If you want something a little out-of-the-box, this chicken fajita marinade made with soy sauce and Sriracha is another family favorite.

Ingredients You’ll Need

Marinade Ingredients

• Olive oil: I use California Ranch Extra Virgin Olive Oil for its fresh flavor, but any good extra virgin olive oil will work.
• Chili powder: Chili powder adds warm, savory chile flavor.
• Kosher salt: I always use Morton kosher salt to season the chicken and bring out the citrus and spices; if using table salt, use a little less.
• Orange, lemon, and lime zest: Finely grated zest adds concentrated citrus flavors without adding extra liquid.
• Orange, lemon, and lime juice: Freshly squeezed juice adds sweetness and acidity.

I use the zest and juice from oranges, lemons, and limes, but grapefruit or tangerines work too, and a microplane grater makes zesting easy.

For the Fajitas

• Boneless skinless chicken breasts: Just like with my sheet pan chicken fajitas, I’m using chicken breasts here but boneless skinless chicken thighs are a great option if you prefer dark meat.
• Bell peppers: I’m not a big fan of green bell pepper but red, orange, or yellow are delicious. I also like grilling whole jalapeños or serranos for a little extra heat.
• Red onion: Red onion becomes sweet and lightly charred on the grill, making it a perfect match for the citrusy chicken. Yellow onions work too.

To Serve

• Flour or corn tortillas: Flour tortillas are traditional, but warm corn tortillas are just as delicious, so use whichever you prefer.
• Lime wedges: A final squeeze of fresh lime juice brightens the fajitas just before serving.
• Cilantro sprigs: Fresh cilantro adds a cool, herbal finish that complements the citrus and chili powder.

prep tips

To make the best chicken fajitas recipe, take the chicken out of the refrigerator while you prepare the grill. It will cook more evenly if it is not ice cold.

Heat a charcoal or gas grill to medium high heat, or use a grill pan or large skillet if you’re cooking indoors.

Grill the bell peppers and onions until they begin to soften and develop a smoky char, then cook the chicken until it reaches an internal temperature of 165°F on an instant-read thermometer.

Similar to our cilantro-garlic chicken fajitas, the cooking time will vary depending on the thickness of the chicken, so temperature is the best way to know when it’s done. 

If you want to make the vegetables the star of the meal, try my Fajita Veggies Recipe for another easy version.

Let the chicken rest for a few minutes before slicing it into thin strips; this helps keep the fajita chicken juicy and tender.

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How to Marinate and Grill Chicken Fajitas

1. Make the easy chicken fajita marinade: Combine oil, juices, chili powder, salt, zests, and pepper in a medium bowl. Whisk until smooth.
2. Marinate the chicken and vegetables separately: Pour half the marinade into a separate medium bowl. Add the chicken to one bowl and the peppers and onions to the other.
3. Marinate at least 15 minutes: Toss both to coat then cover and let marinate in the refrigerator for at least 15 minutes or up to overnight.
4. Grill the vegetables: Heat a ridged grill pan, cast iron skillet, or outdoor grill to medium-high heat. When hot place the vegetables in a single layer (you may need to do this in batches) and cook until starting to soften and char, about 4-5 minutes per side. Remove them to a plate, cover and keep warm. Repeat with remaining vegetables.
5. Grill the chicken: Cook the chicken in a single layer until cooked all the way through, about 8-10 minutes per side.
6. Slice the chicken and vegetables and serve: Slice the vegetables and meat in strips and serve with the tortillas, lime wedges, and cilantro.

Can I Use This Marinade for Other Fajitas?

Absolutely! This is the best fajita marinade for all kinds of protein.

Try it with:

• Steak fajitas made with flank steak
• Shrimp fajitas
• Pork chops
• Salmon or Alaskan cod
• Shrimp or scallops
• Zucchini, eggplant, or mushrooms

You can also use chicken tenders if you want smaller pieces that cook quickly. And if you prefer dark meat, chicken thighs are an excellent choice. They stay juicy and work particularly well on the grill.

How to serve 

You could definitely slice the chicken and vegetables up and put them on top of a crisp salad or rice bowl but we love them best as tacos. 

Serve with warm tortillas and lots of toppings like sour cream or jalapeño avocado crema, your favorite salsa, crumbled queso fresco, and minced cilantro.

If you have leftovers, the chicken and veggies make an excellent topping for nachos. If you only have the peppers and onions leftover, they make equally good veggie fajita nachos.

What to serve with these fajitas

• Red Adobo Fries
• Green Chile Mac & Cheese
• Any of these Mexican salad recipes
• Roasted Beet Salad with Green Chiles and Lime
• Cilantro-Lime Corn
• Super Simple Salsa Verde
• Spiced Fig Tequila Sour Cocktail

How to Store and Use Leftovers

Store leftover chicken and vegetables in an airtight container in the refrigerator for up to 3–4 days.

Reheat them gently in a skillet over medium heat or in the microwave, then tuck them into warm tortillas with fresh toppings.

Leftover fajita chicken is also great in a chicken salad, quesadilla, or served with black beans and avocado.

One More Round on the Grill

If you make these chicken fajitas, I want to hear how they turn out! Share a photo and tag me on Instagram @holajalapeno and #holajalapeno, or leave me a comment below.