Scrub the sweet potatoes and poke a few holes in each. Place them directly on the oven rack or on a baking sheet and bake for 45 to 60 minutes, until very tender.
While the potatoes bake, add the shredded chicken and barbecue sauce to a baking dish. Warm in the oven during the last 10 to 15 minutes of baking time.
Make the ranch dressing by whisking all dressing ingredients together until smooth. Set aside ½ cup for the slaw and refrigerate the rest for later use. Recipe can be found here: https://christinesnotebook.com/greek-yogurt-ranch-dressing/
Add the sliced cabbage to a bowl and toss with the reserved ranch dressing. Taste and add an extra splash of apple cider vinegar if you want more tang.
Once the sweet potatoes are done, split them open and fluff the insides slightly. Top with barbecue chicken and finish with a generous spoonful of slaw.