Quick & Easy Leftover Roast Chicken Fajitas – Fuss Free Flavours

Recipes using pre-cooked fajita chicken

My quick and easy leftover roast chicken fajita recipe can be on the table in 15 minutes and is absolutely delicious. Full of flavor and vibrant colors, these chicken fajitas are so, so good! Serve them with the ingredients you like best. No chicken leftovers? I’ll tell you how to make some leftovers!

A top-down image of the leftover roast chicken fajita elements ready to serve. Stuffed with chicken, tacos and toppings.

Leftover roast chicken fajitas

There is much more flavor and value in a large chicken, compared to a small one. I like to buy a chicken that provides more than one meal, and this quick and easy recipe for prepared chicken fajitas is a great way to use leftovers from a roast.

Fajitas are the best food to share to enjoy with friends; delicious and very easy. Set the table with plenty of bowls of ingredients, such as fresh herbs and sliced chilies, so everyone can assemble their fajitas EXACTLY how they want them.

Nothing beats that sizzling cast iron plate of fajitas when placed on the table. Read on for my helpful tips for getting that perfect sizzle without burning the fajitas, and how to warm your tacos without drying out.

These vibrant, flavorful chicken fajitas will be a staple in the meal plan once you start making them.

Why you’ll love them


  • chicken fajita recipe is really easy and effortlessly impressive
  • .

  • Fajitas are a great way to use leftover roast chicken
  • .

  • This recipe is largely prepared: only five minutes from hand to time
  • .

  • They are very adaptable.

Roast chicken fajita


An annotated picture of chicken fajitas ingredients. Scraps of roast chicken, onion, lime, spices, peppers and taco wraps.

  • Leftover roast chicken – Cut your cooked chicken into strips if you can. When I remove the casing, I pack slices and pieces in separate boxes.
  • Onion – red or white – again, cut into strips.
  • Peppers – You choose. I prefer sweeter red, yellow or orange peppers, but greens are also absolutely fine!
  • Spices – I like ground cumin and smoked chipotle, but you can vary them to taste, or use your favorite fajita spice blend.
  • Lime: To maximize the juice, give it a good vibe on the countertop with a little pressure BEFORE cutting it in half.
  • Tortilla Wraps – I prefer soft wheat street tacos, 2-3 per person depending on appetite and taco size. (They keep well in the freezer, so I like to have some on hand.) Heat them on a hot pizza stone if possible, as this keeps them warm without drying them out.
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Sizzling Fajitas every time

Pro advice You need to serve the fajitas in a different pan than the one you cook! Simple! I cook my fajitas in a

large, heavy nonstick skillet, so I can easily remove the ingredients and carbonize them slightly without burning them.

I then transfer to a smaller, preheated, sizzling hot cast iron plate to serve. You can get them very cheaply in a catering supply store and, if you take care of them, they last for years.

The cast iron skillet keeps its heat for 15 minutes, keeping the girdles warm.

Simply place the empty plate on the stove over higher heat when cooking the fajitas. Turn off the heat when ready to serve.

Pro tip Cast iron is HOT: Use a double carpet or trivet to protect your table. Wrap a tea towel or napkin around the handles of the plate so you can easily pick it up without burning.

How to make

leftover roast chicken fajitas

The ingredients for leftover roast chicken tacos, ready to cook. The onions have been cut into half moons.

Before you begin

Assemble all your ingredients and sides before you start cooking the fajitas. If you’re not sure what to serve with fajitas, there are a few ideas below.

Prepare all ingredients by cutting into narrow strips, try to make them all the same size. If you heat your tortillas on a pizza stone, turn on the oven and put the stone on.

A glass bowl filled with the ingredients for the chicken fajitas, which is being prepared. The onion, chicken and sliced chicken are mixed with lemon juice.

Step One – Put cooked chicken, peppers, onions and spices in a bowl. Add half of the olive oil and season with salt and pepper. Then squeeze over the lime and stir well.

Pro tip If you want to prepare in advance, prepare for this point, cover and put the mixture in the fridge up to a day in advance.

<img src="" alt="

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Four fajita wrappers on a pizza stone.” />

At this point, turn off the oven and put the tortillas on the hot stone to heat or thaw and heat


Cook stuffed with chicken fajita. Sliced peppers, onion and chicken slices cooked in a pan, before and after charring.

Step two: heat your

pan over high heat on the stove.

Add the rest of the oil to a large skillet and fry the chicken mixture over high heat, stirring all the time until slightly charred.

A top-down image of chicken, peppers and onions cooked until lightly charred, served in a cast iron skillet.

Step Three – Transfer to the serving plate preheated to serve


Serve with hot fajita wraps and a selection of ingredients.

No chicken leftovers

? No chicken leftovers

? No problem


You can make some leftovers by simply cutting skinless chicken breasts or thighs into strips, fry for 5 minutes, and then add the rest of the ingredients.

What to serve with leftover roast chicken fajitas

  • Guacamole or sliced/chopped avocado: quick and easy!
  • Grated cheese
  • Diced tomato seasoning and raw
  • red onion Sour cream: Add a pinch of chili powder for extra heat, or cold chopped herbs like cilantro or parsley.
  • Serve with an extra slice of lime.

Tips, tips and variations

It’s easy to add extra vegetables to this chicken fajita recipe. Mix it up and it will be different every time. Try any of the following:

  • baby corn
  • scabies

  • tout/sugar peas
  • zucchini strips eggplant strips
  • sliced mushrooms
  • If you

  • can find it, chayote is popular in Mexican dishes If you find you

have leftovers, why not make a cold chicken fajita wrap for tomorrow’s packed lunch?

More ideas

If you’re looking for more recipes to get the most out of your leftover roast chicken, why not explore these suggestions?

  • Easy chicken biryani
  • Leftover

  • roast chicken frittata
  • Leftover chicken

  • curry
  • Leftover chicken tacos Leftover
  • chicken

  • tagine
  • Laura’s buffalo chicken salad
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