Prepare the Chicken Breasts:

• Preheat your oven to 375°F (190°C).

• Carefully cut a pocket into the center of each chicken breast, being careful not to cut all the way through. Set aside.

Cook the Filling:

• Heat olive oil in a large skillet over medium heat. Add the mushrooms, red bell pepper, green bell pepper, and onion. Cook for 5-7 minutes, stirring occasionally, until the vegetables are softened.

• Stir in 2 teaspoons of Cajun seasoning and cook for another minute until fragrant. Remove from heat and let it cool slightly.

• Once the vegetables are cooled, stir in the shredded pepper jack cheese.

Stuff the Chicken:

• Stuff each chicken breast with the vegetable and cheese mixture, then season the outside of the chicken breasts with the remaining 2 teaspoons of Cajun seasoning.

• Secure the chicken breasts with toothpicks if needed to keep the stuffing in place.

Cook the Chicken:

• In the same skillet, melt the salted butter over medium-high heat. Once the butter is melted, add the stuffed chicken breasts and cook for 3-4 minutes on each side, or until golden brown.

• Transfer the skillet to the preheated oven and bake the chicken for 20-25 minutes, or until the chicken reaches an internal temperature of 165°F (74°C).

Serve:

• Remove the toothpicks from the chicken and serve immediately. Enjoy!