Cook pasta according to package directions then drain and set aside in a bowl. 

As the pasta cooks, place a large skillet (12 inches) over medium heat.

Add in pork sausage and cook until browned and cooked through, about 5-7 minutes, breaking it up as it cooks.  Add kale to the skillet, toss to combine and cook for another minute.  Season with a pinch of salt.

Remove the sausage and kale mixture from the skillet and add it to the bowl with the cooked pasta but leave the skillet over medium heat.

In a bowl or pyrex measuring cup combine 1 ½ cups of autumnal harvest pasta sauce and 1 cup of water and mix to combine. 

Pour that mixture into the still hot skillet and bring to a simmer.

Add in the arrowroot + water mixture and stir with a whisk quickly to combine and thicken the sauce.  Then quickly add in the cheese and stir to combine and melt.

Once the cheese has melted, let the mixture simmer for another 3 minutes.

Add the pasta, sausage and kale mixture into the sauce and toss to combine. Season the dish with salt and pepper to taste.