In a large pan over medium heat, cook sausages thoroughly, crumbling as it cooks 15 - 20 minutes. (see notes)
While the sausage cooks, bring a large pot of water to a boil over high heat. Wash your kale thoroughly, submerge kale in boiling water and blanch for 1 minute. Remove kale from water, bring pot back to a boil, and add your pasta. Cook pasta according to package directions.
Remove stems and combine kale in blender with oil, garlic, basil, and parmesan cheese. Blend until smooth, if you need more liquid, add 1 Tbsp pasta water at a time until smooth.
Mix pesto, cooked pasta, and sausages and serve immediately with some extra parmesan cheese on top.