Preheat oven to 425 F.
Toss the squash, olive oil, paprika, and nutmeg in a bowl, arrange on a baking sheet, and season to taste.
1 butternut squash, 1 tsp. paprika, ¼ tsp. ground nutmeg, Sea salt and freshly ground black pepper
Roast in the oven for 10 to 12 minutes. Add the apple, sausages, and onion.
4 sausages, 1 apple, 1 onion
Place in the oven and bake for another 20 minutes.
Sprinkle the kale on top of everything and bake for another 2 to 3 minutes.
4 cups kale
Remove the pan from the oven and add the red wine vinegar, maple syrup, and mustard, then season to taste with salt and pepper.
1 tbsp. red wine vinegar, 1 tbsp. maple syrup, 2 tsp. Dijon mustard, Sea salt and freshly ground black pepper