COOK chicken and seasonings in large nonstick skillet on medium-high heat for 5 to 7 minutes or until chicken is cooked through, stirring occasionally.
STIR in 2-1/4 cups water. Bring to boil. Stir in macaroni; cover. Reduce heat to medium-low. Simmer 5 minutes. Add peppers and onions; cover and simmer an additional 5 minutes.
ADD VELVEETA; cook until melted, stirring frequently.