Preheat the oven to 400?F (200?C).

In a mixing bowl, combine honey, soy sauce, minced garlic, apple cider vinegar, and black pepper to make the sauce.

On a sheet pan, toss the cubed sweet potatoes and sliced red onion with olive oil, salt, and pepper.

Add the sliced sausage on top of the vegetables.

Drizzle the honey garlic sauce over the sausage and vegetables, then toss to coat evenly.

Bake in the preheated oven for 25-30 minutes, stirring halfway through, until the sweet potatoes are tender and the sausage is cooked through.

Remove from the oven and let cool for a few minutes before serving.