In a large skillet, over medium-high heat, add olive oil. Season the chicken with salt and pepper. Add the chicken to the pan and cook for about 10 minutes, stirring often. Add the frozen vegetables and cook for an additional 3 minutes, until the vegetables are tender.
1 ½ pounds chicken breast, cut into 1-inch cubes, 1 tablespoon canola oil, ½ teaspoon salt, ¼ teaspoon freshly ground black pepper, 1 16-ounce bag frozen stir-fry blend vegetables