Here's a quick and easy coleslaw recipe that will taste much better if you make it in advance.
Combine mayonnaise, sweetener, salt and pepper into a bowl.
Empty contents of coleslaw mix in a large bowl or other storage container.
Dump mayo mixture on top.
Mix together. It may seem too dry, but give it some time, because it will be plenty of dressing for the cole slaw mix.
Now cover and put in the fridge for several hours-2 days. This is one of those things that gets better as the flavors come together.