Preheat your oven to 400°F and line a large sheet pan with parchment paper for easy cleanup.
Peel and dice the sweet potato into 1/2-inch cubes and cut the chicken breast into bite-sized pieces.
In a small mixing bowl, whisk together 1 teaspoon of olive oil, the honey, minced garlic, and Dijon mustard to create the glaze.
Place the chicken and sweet potatoes on the prepared sheet pan, then toss with the remaining 1 teaspoon of olive oil, sea salt, and black pepper.
Drizzle the honey-garlic glaze over the chicken and potatoes, using your hands or a spatula to ensure every piece is evenly coated.
Spread the mixture into a single layer and roast for 20-25 minutes, or until the chicken is cooked through and the potatoes are fork-tender.
While the sheet pan is roasting, combine the coleslaw mix with apple cider vinegar and a pinch of salt in a medium bowl, tossing well to combine.
Serve the warm honey-garlic chicken and potatoes immediately alongside the fresh, crunchy coleslaw.