Chicken Fajita Sliders

Name: Chicken Fajita Sliders
Prep time: 18 min
Cook time: 28 min
Total time: 46 min
Ingredients: 8 Chicken Thighs (boneless and skinless); 2 tablespoons Mexican fajita seasoning; 2 onion (sliced into small chunks, divided); 1 red (yellow, orange pepper, chopped into small chunks); 3 avocados (mashed); 4 tablespoons cilantro (minced); ½ cup Salsa; 8 Slider buns; 1 tablespoon Butter; 1 tablespoon Mexican Tajin Seasoning; 1 tablespoon Garlic (minced)

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Chicken Fajita Sliders are a delicious twist on the classic fajita dish. These bite-sized sliders are perfect for parties, potlucks, or even as a fun weeknight dinner option.

With their combination of tender chicken, savory fajita seasoning, and melty cheese, these sliders will surely be a hit with everyone. Plus, they’re easy to make and can be customized with your favorite toppings.

Are you a fan of chicken sandwiches? If so, next time, give this Chicken Salad Sandwich Recipe a try. It’s great for lunch, a light dinner, or even picnics and special occasions.

Why You’ll Love This Recipe

It’s incredibly quick and easy to prepare, perfect for busy weeknights or last-minute gatherings.
The flavor is absolutely delicious, with an outstanding balance of seasoning and tender chicken in every bite.
This recipe is excellent for feeding a crowd. Whether it’s a family dinner or a casual party, these sliders are guaranteed to disappear fast!

Ingredients

I’ve made this list to help you save time on your next trip to the grocery store. You can find the full amounts needed in the printable recipe card at the bottom of the post.

Boneless Skinless Chicken Thighs
Mexican fajita seasoning
Yellow onion
Bell peppers – I used a red, yellow, and orange pepper.
Avocado
Cilantro
Salsa
Slider buns
Butter
Mexican Tajin Seasoning
Garlic, minced

Variations

Swap the chicken thighs for chicken breasts if you prefer leaner meat.
Add some shredded cheese, such as Monterey Jack, Pepper Jack, or Cheddar, for an extra layer of gooey goodness.
For a spicier kick, mix your fajita seasoning with a pinch of cayenne pepper or add sliced jalapeños.
If you’re looking for a low-carb alternative, ditch the slider buns and serve the fajita mix in lettuce wraps.
Vegan or vegetarian? Substitute the chicken with sautéed mushrooms or a plant-based protein of your choice!

Instructions

This is a quick overview of the steps needed to make this recipe. You can find the full instructions in the recipe card at the bottom of this post.

Place the chicken thighs and half of the sliced onions into a large sealable plastic bag (like a Ziplock bag).
Add the fajita seasoning to the bag, then use your hands to rub the seasoning evenly onto the chicken.
Seal the bag and refrigerate for 5–6 hours, or overnight for the best flavor.
Preheat a Ninja Griller or BBQ grill.
Remove the chicken thighs from the bag and grill them for 15–18 minutes, or until almost fully cooked.
Set the chicken thighs aside.
Heat a sauté pan over medium heat.
Add the bell peppers and remaining sliced onions.
Cook for 6–8 minutes, stirring occasionally, until tender. Set the mixture aside.
Place the tops of the slider buns on one baking sheet and the bottoms on another.
Preheat your oven to 350°F.While the oven preheats, melt the butter in a small bowl.
Add the minced garlic and Tajín seasoning, stirring to combine.
Brush the Tajín butter mixture over the tops of the slider buns.
Once the oven is ready, bake both sheets of buns for 5 minutes
In another small bowl, mash the avocados into a chunky consistency.
Spread the mashed avocado generously onto the bottom of each slider bun.
Place a grilled chicken thigh on top of the mashed avocado, pressing lightly so it adheres.
Add one tablespoon of salsa over each piece of chicken.
Top the salsa with the cooked pepper and onion mixture.
Sprinkle minced cilantro over everything for a burst of fresh flavor.
Place the tops of the slider buns over the filling to complete the sliders.
Serve the sliders warm, and enjoy every flavorful bite.

Expert Tips

If you’re looking for a kick of heat, consider adding a few slices of pickled jalapeños or a dash of hot sauce to the salsa.
To save time, you can prepare the pepper and onion mixture in advance and reheat it when ready to assemble the sliders.
Experiment with toppings! Shredded cheese or a dollop of sour cream can elevate the flavor.
For a crowd-pleasing presentation, arrange the sliders on a platter and garnish with lime wedges for an extra pop of color and zest.

Frequently Asked Questions

Do you have questions about this chicken fajita sliders recipe? Here are the answers to the most commonly asked questions.

What type of buns work best for these sliders?

Soft, mini brioche buns or Hawaiian rolls are highly recommended for their fluffy texture and slightly sweet flavor, which pairs wonderfully with the savory filling. However, feel free to use any slider buns you like!

Can I customize the recipe to fit dietary preferences?

Of course! For a gluten-free version, use gluten-free slider buns and double-check that all other ingredients meet your dietary needs.

What’s the best way to store leftovers?

Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, warm the sliders in the oven at 350°F (175°C) for about 10 minutes, or until heated through. This will help keep the buns soft and fill them with delicious flavor. If you’re in a hurry, the microwave works too—just be cautious not to overheat and dry them out!

Do you love sandwiches? I know that I do, they are so easy to prepare. Some of my favorite sandwiches are these BBQ Pulled Chicken Sandwiches, Air Fryer Turkey and Brie Grilled Cheese and this Tuna Salad Sandwich.

📖Recipe

Want to make this recipe? Print the recipe card below, or pin this recipe, so you can find it later.