Easy Sheet Pan Chicken Fajitas.

Easy Sheet Pan Chicken Fajitas

Roasted, perfectly seasoned chicken, colorful bell peppers, poblano peppers, and sweet onions—all cooked together on one sheet pan. Served fajita-style with a quick, creamy Mexican-style verde sauce and fire-charred tortillas. Everything is simple, flavorful, and comes together in no time. These fajitas are a fun, any-night-of-the-week dinner that feels extra special (but is secretly so easy!).

Sure, it’s called Taco Tuesday – but today, we’re making it Fajita Wednesday! Tacos and fajitas are kind of like cousins. Traditionally, fajitas are served sizzling hot on a skillet with grilled meat, peppers, and onions. Tacos are more grab-and-go, often with a wide range of fillings.

Honestly, maybe these are a little taco-ish. But my vision was fajitas—and I’m sticking with it. These are fresh, flavorful, and so perfect for summer nights.

I actually made this recipe a few weeks ago, just before Cinco de Mayo, but waited to share it because it felt a little more seasonal—bright and summery. I’ve been saving it for the right Tuesday!

And according to my cousin Abby, today is that day. She’s been asking for the recipe since she first saw the preview and said, “You need to post it already!”

So here it is! I’m really excited to finally share these. They’re simple to prep, especially when you use my homemade Mexican fajita/taco seasoning blend. Honestly, the most time-consuming part is just slicing the veggies!

Let’s jump into the details

Ingredients

• chicken breast
• salted butter – or olive oil, but I prefer butter
• garlic
• taco seasoning – I shared my mix in the notes
• yellow onions
• bell peppers
• poblano peppers
• flour tortillas – I love Caramelo Tortillas, charred them over a gas burner
• mashed avocados and lime – for serving

Ingredients – for the sauce

• plain Greek yogurt
• mayo – or you can use more Greek yogurt
• salsa verde
• pickled jalapeños
• cilantro
• Cotija or feta cheese

Special Tools

For these quick fajitas, you need a sheet pan and a mixing bowl. Plus a few other everyday kitchen tools.

Steps

Step 1: Roast the Chicken, Peppers & Onions

On a large sheet pan, toss the chicken with a few pats of butter, minced garlic, your favorite taco seasoning, sliced onions, bell peppers, and poblano peppers. Season everything generously with salt and pepper.

Spread everything out in an even layer and bake until the chicken is cooked through and the veggies are tender. The exact time will depend on how large or small you slice the chicken—just keep an eye on it!

Tip: If your sheet pan feels crowded (or you’re doubling the recipe), divide everything between two pans for even cooking. It’s perfect for meal prep too!

Step 2: Mix the Creamy Verde Sauce

While the chicken is roasting, whisk together the quick creamy verde sauce. It’s super simple but adds so much flavor.

In a small bowl, combine:

• Greek yogurt

• Mayo

• Salsa verde

• A few pickled jalapeños for heat

• Fresh chopped cilantro for brightness

Stir it all together and set aside. That’s it!

Step 3: Assemble the Fajitas

Now for the fun part—building your fajitas!

I love to char flour tortillas over the gas burner for a little smoky flavor. If that’s not an option, just warm them in a dry skillet until they’re lightly toasted.

Here’s how I like to layer mine:

1. Start with smashed avocado, seasoned with lime juice and flaky sea salt.

2. Add the roasted peppers and onions.

3. Top with juicy, golden chicken.

4. Drizzle over that creamy verde sauce.

5. Finish with shredded cheese, fresh cilantro, and a good squeeze of lime.

So delicious. So easy. And such a fun dinner any night of the week!

The sides

When it comes to fajitas, the sides are just as important as the main event! I love serving these with a side of rice and homemade tortillas chips. I bake the chips in the oven using tortillas, olive oil, and sea salt. We love them!

Don’t forget the essentials:

• Smashed avocado or guacamole

• Fresh lime wedges for squeezing over everything

And of course, a margarita (or two!) makes it all feel like a summer celebration.

Looking for other quick Mexican recipes? Here are a few ideas: 

Crispy Jalapeño Cream Cheese Buffalo Chicken Taquitos

Sheet Pan Chipotle Salmon Tacos with Pineapple Jalapeño Salsa

Crockpot Crispy Chicken Tinga Tacos with Avocado Jalapeño Crema

Lastly, if you make these Easy Sheet Pan Chicken Fajitas, be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And of course, if you do make this recipe, don’t forget to tag me on Instagram! Looking through the photos of recipes you all have made is my favorite!