In 12-inch nonstick skillet, cook beef, bell pepper and onion over medium-high heat 8 to 10 minutes or until beef is browned and vegetables are softened; drain. Wipe out skillet. Return beef mixture to pan; add taco seasoning mix and water. Cook and stir over medium-high heat 1 to 2 minutes or until well mixed. Remove from heat. Cool 2 minutes.