These Sheet Pan Chicken Fajitas are made with seasoned chicken, colorful peppers and onions all roasted together on one pan for an easy and delicious meal with minimal cleanup.
Slice the chicken breasts into thin strips and place them into a large bowl. Add the sliced red bell pepper, yellow bell pepper and red onion to the bowl.
Sprinkle in both packets of fajita seasoning. Drizzle with olive oil and add the vinegar. Toss everything together really well until the chicken and vegetables are fully coated.
Spread the mixture onto a large sheet pan in an even layer. Bake for 20 to 25 minutes, stirring halfway through, until the chicken is cooked through and the vegetables are tender. Serve immediately and enjoy!