Prepare marinade by whisking together all ingredients in a small bowl and transferring to a large plastic baggie. Add the chicken to the baggie, shake to coat the chicken, and marinade for at least 1 hour (up to 4).
Bake chicken on parchment-lined cookie sheet at 350*F for 30-40 minutes, or until chicken is cooked through and juices run clear; let chicken rest while macaroni is cooking.
Prepare macaroni as directed on package; drain well, cover to keep warm.
Cube chicken, cover to keep warm.
In large saucepan over medium-heat, combine butter, extra virgin olive oil, cheeses, milk, dried onion flakes, salt and pepper; stir constantly until melted.
Add macaroni, broccoli slaw and cubed chicken to the cheese mixture; mix well.
Transfer to a large, deep, greased casserole dish; sprinkle with paprika. Bake at 350*F for 35-40 minutes, or until cheese turns light brown.