Prepare Cowpoke Barbecue Sauce.
Spray large nonstick skillet with cooking spray. Heat over medium-high heat until hot. Brush chicken with 1/4 cup barbecue sauce. Add to skillet. Cook and stir 3 minutes or until chicken is browned. Add peppers and onion. Cook and stir 3 minutes or until vegetables are crisp-tender and chicken is no longer pink. Add tomatoes. Cook 2 minutes or until heated through, stirring occasionally.
Serve with warm flour tortillas and remaining 3/4 cup Cowpoke Barbecue Sauce. Garnish with cilantro, if desired.
Heat oil in large nonstick saucepan over medium heat until hot. Add onions and garlic. Cook and stir 5 minutes or until onions are tender. Stir in remaining ingredients. Reduce heat to medium-low. Cook 15 minutes, stirring occasionally.
Servings: 4