In a bowl, toss the chicken breasts with 1 tablespoon of olive oil and 2 tablespoons of fajita seasoning.
Slice the bell peppers and onion into strips. Place them in a separate bowl and toss with 1 tablespoon of olive oil and 1 tablespoon of fajita seasoning.
Preheat your grill or grill pan to medium-high heat.
Grill the chicken breasts for 5-7 minutes per side, or until cooked through (165°F/74°C).
Add the sliced peppers and onions to the grill or grill pan. Cook for 5-7 minutes, stirring occasionally, until they are tender-crisp and slightly charred.
Remove the chicken from the grill and let it rest for 5 minutes before slicing it into strips.
Divide the cooked rice or quinoa evenly among bowls. Top with the grilled vegetables and sliced chicken.
Garnish with your favorite toppings and a squeeze of lime juice. Serve immediately.
Notes
For best results, marinate the chicken in the fajita seasoning for at least 30 minutes before grilling.
Adjust the spice level to your liking by adding more or less fajita seasoning.
Feel free to use other vegetables, such as zucchini or mushrooms.
Serve with warm tortillas for a traditional fajita experience.