Heat 1 tablespoon of the olive oil in a deep skillet over medium high heat. Add garlic and sauté for 30 seconds or until fragrant. Remove sausage from casings and heat in the pan using a wooden spoon to break down meat into bite-sized pieces. Cook until cooked through and golden brown, about 7-9 minutes.
Add kale to the pan and sauté until it starts to wilt and turn bright green, about 4-5 minutes, stirring frequently. Toss in remaining 1 tablespoon olive oil and zucchini noodles to the pan and saute until zucchini is just cooked through, about 2-3 minutes.
Right before removing from the heat, stir in the parmesan cheese and toss until melted. Check for seasoning then add salt or pepper to taste. Garnish with chili flakes and basil if you wish to serve.