Chicken Fajita Quesadillas (Sheet Pan)
These crowd-pleasing Chicken Fajita Quesadillas are an easy weeknight dinner recipe that’s a mash-up of two Mexican-inspired recipes. They come together in just one sheet pan making prep and clean up quick and seamless.
Weeknights can be hectic, we’ve all been there. So I like to keep dinner no-fuss, but I’m not willing to sacrifice flavor. These sheet pan Chicken Fajita Quesadillas are the perfect mealtime solution that taste great, come together in under an hour, and feed the whole family. We also love to make them for game day or Super Bowl Sunday too!
This oversized quesadilla layers soft tortillas with fresh veggies, seasoned chicken, and a generous shower of cheese. Then it’s baked to crispy, melty perfection for the ultimate easy shareable appetizer or main course. It’s so difficult to make several quesadillas for the whole family or at a party, but with this sheet pan version, that problem is solved.
Check out some of my other delicious and easy dinner recipes. This One Pot Beef and Shells is a comforting one-pot pasta recipe, and these Crispy Honey Garlic Chicken Thighs are a simple, flavor-packed dinner idea to add to your weekly rotation.
Why You’ll Love This Recipe
- Feeds a Crowd. Forget flipping quesadillas one by one. This sheet pan method makes enough to feed a group, all at once.
- Customizable. Fill these with a combination of your favorite proteins, veggies and cheeses. Get creative!
- Quick and Easy with Store-bought Ingredients. Rotisserie chicken, shredded Mexican cheese and fajita seasoning are flavorful store-bought shortcuts to help this meal come together, fast.
- One Pan Recipe. With everything assembled and baked on one sheet pan, clean up is a breeze.
Ingredients
For The Filling:
- Chicken: Shredded rotisserie chicken is a great shortcut, but feel free to make your own boneless skinless chicken breasts, or use any leftover chicken you’ve got in the fridge.
- Bell Peppers: Use any combination of colors, for flavor and texture.
- Onions: We like yellow to add a nice, mild oniony flavor to the filling.
- Fajita Seasoning: Use store-bought or make your own blend.
To Assemble & Toppings:
- Tortillas: Flour tortillas have a soft, chewy texture.
- Mexican Cheese: Shredded and melty, this is essential for any great quesadilla.
- Sour Cream: Cool and refreshing to top with.
- Guacamole: Homemade or store-bought.
- Salsa: Use your favorite variety.
- Cilantro: Fresh, for garnish.
- Lime Wedges: A fresh squeeze for acidity at the end is a must.
How To Make Chicken Fajita Quesadillas
1. Preheat your oven to 425°F (220°C). Lightly grease a large 18×13-inch sheet pan with nonstick spray or olive oil.
2. In a large skillet, heat 1 tablespoon olive oil over medium-high heat. Add the sliced bell peppers and onions. Sauté for 5–7 minutes, stirring often, until they begin to soften and get a little caramelized around the edges.
3. Lower the heat slightly and add the shredded rotisserie chicken, 1 tablespoon olive oil, fajita seasoning, salt, and pepper. Stir until everything is coated and warmed through (about 3 minutes). Remove from heat.
4. Lay 6 tortillas on the prepared sheet pan so they overlap slightly and hang halfway over the edges — you’ll fold them over later.
5. Place 1 tortilla in the center to cover any gaps.
6. Sprinkle 2 cups shredded cheese over the tortillas. Then, spread the chicken and pepper mixture evenly across the tortillas. Sprinkle remaining shredded cheese evenly over the top.
7. Fold the overhanging tortillas from the sides back toward the center to enclose the filling. Add 1-2 extra tortilla on top to cover any open spots.
8. Place another sheet pan on top to keep the quesadilla flat and help it crisp evenly as it bakes.
9. Bake for 20–25 minutes, until golden and crispy. Remove the top pan for the last 5 minutes so the top gets lightly browned.
10. Let it rest for 5 minutes before cutting into squares or triangles. Serve warm with sour cream, salsa, guacamole, and lime wedges.
Expert Tips
- Keep It Crispy. Brushing your sheet pan with butter, oil, or spraying with cooking spray is a great way to prevent the quesadillas from getting soggy. This will ensure the tortillas get nice and crispy. Skip lining your pan with parchment or foil for this recipe, too.
- Weigh It Down. Generously brush the bottom side of the top sheet pan with butter or oil, and use pie weights or a small oven-safe dish filled with baking beans to firmly press the quesadilla together for a gooey inside and crispy top.
- Rest Before Cutting. Once the quesadillas are baked and out of the oven, let them sit for 5-10 minutes before slicing into portions. This will help the filling set before cutting into squares or triangles.
Variations
- Switch up the protein. Try seasoned ground beef, sliced steak, or even grilled shrimp in place of chicken. If you aren’t a meat lover, add beans or even an extra layer of cheese or vegetables for the filling.
- Add different veggies. If you’ve got extra veggies in your crisper that need to be used, add them to the filling. Mushrooms, zucchini and spinach work nicely.
- Make it Spicy. Dice up a jalapeño or Fresno chili pepper and add it to your filling for a little kick.
- Try Other Tortillas. We call for flour, but experiment with corn or even flavored varieties, like spinach.
Storage and Make-Ahead Instructions
Cut quesadillas into individual portions, then store leftovers in the fridge in an airtight container for up to 5 days.
Freeze quesadillas this same way in a freezer-safe container or individually wrapped for up to 2 months. Thaw in the fridge, then bake as instructed, until crispy and melty.
You can also assemble these quesadillas ahead of time, then wrap tightly for up to 2 days (or freeze for up to 2 months) before baking them. Allow them to come to room temperature then bake as instructed when you’re ready to enjoy.
FAQs
While they’re made with similar ingredients, the main difference is fajitas are a mixture of grilled meats and vegetables served with tortillas on the side for assembly. While quesadillas have a meat, vegetable and cheese filling inside of the tortilla, then the whole thing is cooked on a griddle until hot and melty.
You can use a variety of cheeses, but the key characteristic is a cheese that melts really well. You can use Tex-Mex style cheeses like Monterey jack, pepper jack, cheddar or a Mexican blend. Or more authentic cheeses like Oaxaca or Chihuahua work nicely, too. All of these are super melty when cooked!
Absolutely. A fajita seasoning mix is usually a blend with chili powder, cumin, paprika, garlic and onion powder, and sometimes oregano. This mix adds a nice flavor and kick to quesadillas.
It’s considered an authentic quesadilla as long as it’s made with a tortilla – either flour or corn, a melty cheese, a meat or vegetable filling, and then cooked on a griddle or flat top.
More Easy Dinner Recipes
Chicken Fajita Quesadillas (Sheet Pan)
Ingredients
For the fajita filling:
- 3 cups shredded rotisserie chicken
- 2 bell peppers any color, thinly sliced
- 1 yellow onion thinly sliced
- 2 tablespoons olive oil divided
- 1 tablespoon fajita seasoning store-bought or homemade
- ½ teaspoon salt
- ¼ teaspoon black pepper
For assembling:
- 9 large flour tortillas
- 4 cups shredded Mexican blend cheese or use cheddar, Monterey Jack, or pepper jack – divided
- Nonstick spray or a drizzle of olive oil for the sheet pan
Optional toppings:
- Sour cream
- Guacamole
- Salsa
- Cilantro
- Lime wedges
Instructions
Preheat the oven:
- Preheat your oven to 425°F (220°C). Lightly grease a large 18×13-inch sheet pan with nonstick spray or olive oil.
Cook the veggies:
- In a large skillet, heat 1 tablespoon olive oil over medium-high heat. Add the sliced bell peppers and onions. Sauté for 5–7 minutes, stirring often, until they begin to soften and get a little caramelized around the edges.
Add the chicken and seasoning:
- Lower the heat slightly and add the shredded rotisserie chicken, 1 tablespoon olive oil, fajita seasoning, salt, and pepper. Stir until everything is coated and warmed through (about 3 minutes). Remove from heat.
Assemble the quesadilla:
- Lay 6 tortillas on the prepared sheet pan so they overlap slightly and hang halfway over the edges — you’ll fold them over later.
- Place 1 tortilla in the center to cover any gaps.
Add the filling:
- Sprinkle 2 cups shredded cheese over the tortillas. Then, spread the chicken and pepper mixture evenly across the tortillas. Sprinkle remaining shredded cheese evenly over the top.
Fold and top:
- Fold the overhanging tortillas from the sides back toward the center to enclose the filling. Add 1-2 extra tortilla on top to cover any open spots.
Weigh it down:
- Place another sheet pan on top to keep the quesadilla flat and help it crisp evenly as it bakes.
Bake:
- Bake for 20–25 minutes, until golden and crispy. Remove the top pan for the last 5 minutes so the top gets lightly browned.
Slice and serve:
- Let it rest for 5 minutes before cutting into squares or triangles. Serve warm with sour cream, salsa, guacamole, and lime wedges.
