Preheat oven to 425oF (218oC) and line a large baking sheet with parchment paper.
Add the chicken, red bell pepper and broccoli and in a large mixing bowl. Drizzle the olive oil, salt and pepper over the vegetables and chicken then toss to combine. Transfer to the baking sheet. Bake in the oven for 20 to 25 minutes, or until chicken is cooked through.
Remove chicken and vegetables from the oven and divide into bowls. Salt and pepper to taste. Enjoy!