Chicken Avocado Quesadillas

Featured in Satisfying Hearty Mains.

Cook seasoned chicken breasts, sauté peppers and onions with fajita seasoning, dice chicken and mix with veggies, fill tortillas with chicken mixture, cheese, and avocado, fold and cook until crispy.
emliy for recipes by clare
Updated on Mon, 29 Dec 2025 15:09:28 GMT
Chicken Avocado Quesadillas Pin it
Chicken Avocado Quesadillas | recipesbyclare.com

Chicken avocado quesadillas are the perfect example of how "leftover management" can accidentally become a family favorite. This recipe likely started with half an avocado and some grilled chicken that needed a purpose, but it evolved into a 25-minute, one-pan masterpiece. By searing seasoned chicken, sautéing peppers and onions in the same flavorful drippings, and folding them into crispy tortillas with fresh avocado and gooey cheese, you create a dinner that feels intentional rather than assembled. It’s the ultimate solution for unexpected guests or the post-work hunger crunch.

I first mastered these when my teenager brought home three friends with zero warning. I had thirty minutes to go from "empty kitchen" to "cool mom," and these quesadillas saved me. Even my neighbor Karen, who usually lectures everyone about "authentic" Mexican cuisine, ended up asking for my seasoning brand after she polished off two of them while standing in my kitchen. She might call them "grilled chicken folded tortillas" to sound more traditional, but we both know she's making these exact Americanized quesadillas every week now.

Master Your Ingredients

  • Chicken Breasts: Use two medium boneless, skinless breasts. Searing them whole before dicing locks in the juices and creates a flavorful crust that diced chicken often misses
  • Fajita Seasoning: Two tablespoons of a smoky southwestern blend. This is the heavy lifter for flavor, so choose a brand you trust or make a quick DIY mix
  • Fresh Avocado: One ripe avocado, sliced or diced. Its creaminess balances the spice of the chicken and the crunch of the toasted tortilla
  • Bell Peppers and Onion: These provide the classic fajita texture. Use a mix of colors for the best visual appeal and a touch of sweetness
  • Cheese Blend: Half a cup of Mexican blend, Monterey Jack, or Cheddar. You want something with a high melt factor to act as the "glue" for your fillings
  • Flour Tortillas: Medium-sized flour tortillas are the gold standard here for their ability to get perfectly crispy and golden in the pan
Chicken Avocado Quesadillas Pin it
Chicken Avocado Quesadillas | recipesbyclare.com

Creating Your Perfect Quesadillas

The Perfect Sear:
Heat your skillet to high and pat the chicken completely dry. This is the secret to a golden crust instead of grey, steamed meat. Season aggressively with salt and pepper. Sear for 5-6 minutes per side until reaching 165°F, then let it rest. This resting period ensures the juices stay in the meat when you dice it later.
Capturing the Fond:
Don't wipe the pan! Add your peppers, onions, and garlic directly into the chicken drippings. Add the tomatoes and fajita seasoning, allowing the moisture from the tomatoes to lift those flavorful browned bits off the bottom of the pan. Stir the diced chicken back in to coat everything in the spice mixture.
Assembly and Griddling:
Spread a teaspoon of sour cream on half of each tortilla, then layer your cheese, fresh avocado, and chicken mixture. Fold and cook over medium-high heat. This specific temperature allows the tortilla to crisp up at the exact same moment the cheese reaches its maximum meltiness.

The first time I made these, I was in such a rush that I skipped drying the chicken and threw the avocado into the hot pan with the peppers. It was a disaster—the chicken was rubbery and the avocado turned into an unappealing grey paste. I learned the hard way that those small steps, like using paper towels and waiting to add the greens, are what actually make the recipe work.

Flavorful Variations

For a faster version, use shredded rotisserie chicken and simply toss it with the sautéed vegetables. If you want more protein, a layer of black beans works beautifully. For the heat-seekers, swap the Monterey Jack for Pepper Jack cheese or toss some fresh jalapeños into the pepper and onion mix. You can even use corn tortillas for a firmer, more corn-forward crunch.

Storage and Reheating

Quesadillas are best enjoyed fresh, but the filling can be made up to 3 days in advance and stored in the fridge. If you have leftover assembled quesadillas, avoid the microwave—it will make them rubbery. Instead, reheat them in a dry skillet over medium heat for 2 minutes per side to bring back the original crunch. Freezing is not recommended due to the fresh avocado content.

Chicken Avocado Quesadillas Pin it
Chicken Avocado Quesadillas | recipesbyclare.com

These chicken avocado quesadillas have earned a permanent spot in my rotation because they satisfy the "special dinner" craving without the special dinner effort. They prove that you don't need a complicated grocery list to make something everyone—from picky teenagers to judgmental neighbors—will genuinely love. Once you see that golden, crispy shell and taste the creamy avocado, you'll see why I've stopped ordering takeout and started reaching for the tortillas.

Frequently Asked Questions

→ Can I use leftover or rotisserie chicken?
Absolutely! Using pre-cooked chicken is a huge time saver. Just dice it up and add it to the veggie mixture to warm through. Skip the first cooking step.
→ What's the best way to keep quesadillas warm?
Keep finished quesadillas warm in a 200°F oven on a baking sheet while you cook the rest. Don't stack them or they'll get soggy.
→ Can I make these ahead of time?
The chicken filling can be made up to 3 days ahead and stored in the fridge. Assemble and cook the quesadillas fresh for the best texture though.
→ What cheese works best?
Mexican blend, cheddar, Monterey Jack, or even pepper jack all work great. Use whatever melts well and you like the taste of.
→ How do I prevent the filling from falling out?
Don't overfill them - use just enough filling to cover half the tortilla. Press down gently when you fold them to help seal the edges.
→ Can I make these healthier?
Use whole wheat tortillas, low-fat cheese and sour cream (as the recipe already suggests), and add extra veggies. You can also use less cheese or skip the sour cream.

Chicken Avocado Quesadillas

Crispy tortillas stuffed with seasoned chicken, creamy avocado, peppers, and melted cheese. Quick weeknight dinner done in 25 minutes.

Prep Time
10 Minutes
Cook Time
15 Minutes
Total Time
25 Minutes

Category: Hearty Mains

Difficulty: Easy

Cuisine: Mexican

Yield: 4 Servings (4 quesadillas)

Dietary: ~

Ingredients

→ For the Chicken Filling

01 2 medium boneless, skinless chicken breasts
02 Kosher salt and freshly ground black pepper
03 2 tsp olive oil, divided
04 1 small onion, finely chopped (about ½ cup)
05 1 cup bell peppers, any color, diced
06 3 garlic cloves, finely chopped
07 ½ cup tomatoes, diced
08 2 tbsp fajita or taco seasoning

→ For the Quesadillas

09 4 medium flour tortillas
10 1 avocado, seeded and sliced
11 4 tsp low-fat sour cream
12 ½ cup shredded cheese (mozzarella, Mexican blend, or cheddar)
13 Fresh lime juice (optional)
14 Minced cilantro (optional)

Instructions

Step 01

Heat a large heavy-duty pan over high heat. Season both sides of the chicken breasts generously with salt and pepper. Add 1 teaspoon of olive oil to the hot pan. Place the chicken breasts in and cook for 5 to 6 minutes per side until they're cooked through. Take them out and set aside to rest.

Step 02

In the same pan, add the remaining teaspoon of olive oil along with the diced onion, bell peppers, and garlic. Cook for 2 to 3 minutes until everything softens. Add the diced tomatoes and fajita seasoning. Cook for another 2 minutes until the tomatoes soften up.

Step 03

Dice the cooked chicken into bite-sized pieces and add it back to the pan with the veggie mixture. Stir everything together until well combined.

Step 04

Heat a clean pan over medium heat and add a teaspoon of oil. Lay 2 tortillas flat in the pan. Spread half a teaspoon of sour cream on each tortilla. Top with some cheese, avocado slices, a portion of the chicken mixture, a squeeze of lime juice, and a sprinkle of cilantro if using.

Step 05

Fold each tortilla in half to create a half-moon shape. Cook for 2 to 3 minutes on each side until the tortillas are crisp and golden and the cheese has melted. Repeat with the remaining 2 tortillas and filling.

Step 06

Cut each quesadilla into wedges. Serve hot with extra lime wedges, sour cream, salsa, or guacamole on the side.

Notes

  1. Store-bought fajita seasoning works great, but you can make your own by mixing 1 tsp chili powder, 1 tsp smoked paprika, 1 tsp salt, 1 tsp cumin, ½ tsp garlic powder, and ½ tsp black pepper.
  2. Any color bell pepper works - use whatever you have or a mix of colors for more flavor.
  3. You can prep the chicken filling ahead and store it in the fridge for up to 3 days.
  4. For crispier quesadillas, use less oil and don't overload them with filling.
  5. Leftover rotisserie chicken works great to save time - just skip the first step.
  6. These are best eaten fresh and hot right off the pan.

Tools You'll Need

  • Large heavy-duty skillet or pan
  • Cutting board and knife
  • Spatula
  • Tongs (optional)

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy (cheese, sour cream)
  • Contains gluten (flour tortillas)