In a bowl, combine mayonnaise, yogurt, red wine vinegar, spicy brown mustard, honey, garlic, and black pepper. Mix to combine, and put in fridge to rest for 30 minutes
In a large pot of salted, boiling water, cook pasta according to directions on box. Drain pasta, and allow to cool for a few minutes
In a large bowl, add pasta, bell pepper, celery, red onion, egg, carrots, and half of parsley. If using sundried tomatoes, add those too.
Add about 2 tablespoons of dressing at a time, mixing together each time. You can always add...you can't remove! Add remaining parsley and combine well again.
Allow Funfetti Macaroni Salad to rest in the fridge for at least 30 minutes before serving. The longer it rests, the better it tastes!