Sprinkle chicken with salt and pepper. Heat oil in a large nonstick skillet over medium-high heat. Add chicken to pan; cook 2 minutes on each side or until browned. Add onion and bell pepper; sauté 4 minutes. Reduce heat to medium. Add garlic, chickpeas, and tomatoes; cover and cook 8 minutes or until thoroughly heated. Garnish with parsley leaves, if desired.