Pre-heat oven at 400 degrees. Line a roasting with foil and set a rack in the pan.
Prepare Chicken, and stuff with Shallots, carrots, celery, thyme, rosemary and sage.
Using your fingers, pat the chicken with butter, season with poultry seasoning, garlic powder, salt and pepper. Set aside.
In a large bowl, add cubed sweet potatoes, rutabaga, butternut squash, Nantes carrots, shallots, garlic, oil, salt, and pepper. Mix until fully combined. Set aside.
Put chicken in a roasting pan lined with foil (enough to cover chicken). Place chicken in oven and roast until skin is golden brown and internal temperature reaches 165 degrees F. Uncover ½ hour before done.
While chicken is cooking, place mixed vegetables on baking sheet and roast in oven for 30 minutes.
Decorate your plate with stuffed chicken, mixed veggies, and roasted asparagus and ready to serve.