Life is just better when your dinner tastes this good! It is simply impossible not love life with a plate of fajita-stuffed chicken breast in front of you – it’s a pick-me-up, feel-good dinner. Chicken breasts are stuffed with peppers, onions, and spicy habanero jack cheese, then rubbed with chili powder and grilled or pan-fried until juicy, cheesy, and delicious.

If there’s anything better than an effortless chicken dinner, it’s this one. It comes together in just 30 minutes with a handful of simple, flavorful ingredients, making it perfect for nights when you want something satisfying without much fuss.
I stuff the chicken breasts with plenty of veggies and a gooey cheese that melts right into the filling and seasons everything from the inside out. You can finish it on the grill or in a skillet, depending on your mood, and either way, it turns out juicy, flavorful, and guaranteed to be a hit.
Ingredients notes
The ingredients you need for stuffed fajita chicken breast are all familiar – grab a few veggies, your chicken, and you’re ready to go! This is what you need:
- Ingredients : Chicken breasts, fajita seasoning , sea salt, and oil.
- Fajita filling : Monterey jack cheese, red bell peppers, green bell peppers, and red onion.

The best way to cook your cheesy fajita-stuffed chicken
You’ve got two ways to prepare your fajita chicken: either on the BBQ or on your stovetop. Both make a delicious chicken dinner, so which choice is best? Here are the pros and cons:
- For the grill: This is the ideal choice, especially in summer. Cooking outdoors spares you from further heating your already warm house. However, one drawback of grilling this recipe is the potential mess. We strongly recommend using a BBQ mat or a cast-iron pan to minimize any spills.
- On the stovetop: This is also a delicious method! Cook this stuffed chicken indoors in a nonstick or cast-iron pan, or on a grill pan . Reserve this method for year-round cooking convenience.
How to use leftover fajita stuffed chicken breast
If you have leftovers and you’re craving something a little different the next day, you can use your leftovers to make an easy meal! Here are some ideas:
- Wrap it up: Wrap leftovers in a warm flour tortilla, add some cheese, lettuce, salsa, or guacamole . Get smaller tortillas for tacos, or larger tortillas and add rice and black beans for burritos.
- Fajita bowl: Chop the leftover chicken and toss it with mixed greens, avocado slices, halved cherry tomatoes and a drizzle of chipotle lime dressing .
- Rice dishes : Work it into some taco rice or Mexican rice for a hearty and flavor-packed lunch or dinner.
- Salads : Toss with romaine lettuce, corn, black beans, and bell peppers, drizzle on some chipotle lime dressing , and enjoy a fajita-chicken salad!
How do I store leftover fajita stuffed chicken breast?
You can store leftovers in an airtight container in the fridge for up to 3-4 days. Reheat leftovers and enjoy them as is, or incorporate the leftovers into other recipes such as salads, tacos, or fajita bowls.
Can I use chicken thighs instead for fajita stuffed chicken breast?
We do not recommend using chicken thighs for this recipe due to their smaller size. The chicken breasts are large enough to cut a slit to fill with your fajita ingredients. Chicken thighs may not provide enough surface area for stuffing, so your result will be less satisfying if you’re after a stuffed-type recipe.
Can I use another type of cheese?
Sure! Our top picks are Monterey Jack or pepper jack, but you can also use another type of cheese, like cheddar cheese.

Fajita Stuffed Chicken Breast Recipe
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Ingredients
- ▢ 4 chicken breasts
- ▢ 2 tablespoons fajita seasoning
- ▢ 1 teaspoon sea salt
- ▢ 1 teaspoon oil
Fajita Filling
- ▢ 3 ounces Monterey Jack cheese (shredded)
- ▢ ½ red bell peppers (diced)
- ▢ ½ green bell pepper (diced)
- ▢ ¼ cup red onion (diced)
Instructions
- Lay the chicken breasts on a cutting board and cut a pocket into them. Be careful not to cut all the way through. Sprinkle the fajita seasoning and sea salt over both sides of the chicken. 4 chicken breasts, 2 tablespoons fajita seasoning, 1 teaspoon sea salt
- Add the Monterey Jack cheese, bell peppers, and red onion to a medium-sized bowl and mix together. Stuff this into the pockets you cut in the chicken breasts. 3 ounces Monterey Jack cheese, ½ red bell peppers, ½ green bell pepper, ¼ cup red onion
To grill the chicken:
- Preheat your grill to medium heat. Drizzle the oil on a BBQ mat or in a cast iron pan. Place the chicken on the mat or in the pan and cook for 15 minutes, turning halfway through cooking. Ensure that the filling reaches 165 degrees Fahrenheit. 1 teaspoon oil
To cook the chicken on the stove:
- Heat the oil in a cast iron or nonstick frying pan over medium heat. Add the chicken and cook for 15 minutes, turning halfway through cooking. Ensure that the filling reaches 165 degrees Fahrenheit. 1 teaspoon oil
Nutrition
We have thoroughly tested this recipe for accuracy. However, individual results may vary. See our full recipe disclosure here .

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Fajita Stuffed Chicken Breast Recipe
Ingredients
- 4 chicken breasts
- 2 tablespoons fajita seasoning
- 1 teaspoon sea salt
- 1 teaspoon oil
Fajita Filling
- 3 ounces Monterey Jack cheese , shredded
- ½ red bell peppers , diced
- ½ green bell pepper , diced
- ¼ cup red onion , diced
Instructions
- Lay the chicken breasts on a cutting board and cut a pocket into them. Be careful not to cut all the way through. Sprinkle the fajita seasoning and sea salt over both sides of the chicken. 4 chicken breasts, 2 tablespoons fajita seasoning, 1 teaspoon sea salt
- Add the Monterey Jack cheese, bell peppers, and red onion to a medium-sized bowl and mix together. Stuff this into the pockets you cut in the chicken breasts. 3 ounces Monterey Jack cheese, ½ red bell peppers, ½ green bell pepper, ¼ cup red onion
To grill the chicken:
- Preheat your grill to medium heat. Drizzle the oil on a BBQ mat or in a cast iron pan. Place the chicken on the mat or in the pan and cook for 15 minutes, turning halfway through cooking. Ensure that the filling reaches 165 degrees Fahrenheit. 1 teaspoon oil
To cook the chicken on the stove:
- Heat the oil in a cast iron or nonstick frying pan over medium heat. Add the chicken and cook for 15 minutes, turning halfway through cooking. Ensure that the filling reaches 165 degrees Fahrenheit. 1 teaspoon oil
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