Preheat the oven to 400 F and line a large baking sheet with parchment paper.
Add the vegetables and sausage to the baking pan, and top with avocado oil and season. Toss and make sure that everything is laying flat and nothing is overlapping so the vegetables and sausage can evenly roast.
Transfer to the oven and roast for 35-45 minutes, turning halfway through, until the vegetables are cooked to your liking.
Remove from the oven and serve topped with chopped parsley.
Notes
All nutritional information are estimations and will vary. Estimations do not include optional ingredients.