Meanwhile, cut chicken into bite sized pieces. Heat olive oil in a 12" skillet over medium-high heat. Add chicken and garlic and saute for several minutes, until chicken is just lightly golden brown. Season with crushed red pepper, salt, and fresh ground pepper, to taste. Add chopped roasted red peppers and cook, stirring, for another minute or two or until chicken is thoroughly cooked. Reduce heat to medium and add half-and-half and pesto and stir well to incorporate into the chicken mixture.