01 - Bring a large pot of salted water to a boil. Cook gnocchi according to package instructions. Reserve ¼ cup pasta water, then drain and set aside.
02 - Heat olive oil in a large skillet over medium heat. Add turkey sausage and cook, breaking up with a spoon, until browned and cooked through, about 5 to 6 minutes. Transfer sausage to a plate.
03 - In the same skillet, add chopped onion and sauté until softened, approximately 3 minutes. Add minced garlic and cook for 30 seconds until fragrant.
04 - Add chopped kale to the skillet and cook, stirring frequently, until wilted, about 2 to 3 minutes.
05 - Return browned sausage to the skillet. Pour in chicken broth, scraping up any browned bits from the bottom. Stir in heavy cream and grated parmesan cheese. Simmer gently for 2 to 3 minutes until sauce slightly thickens.
06 - Add cooked gnocchi to the skillet. Toss gently to coat with sauce, adding reserved pasta water as needed to adjust consistency.
07 - Season with freshly ground black pepper, crushed red pepper flakes if desired, and salt to taste. Serve immediately, garnished with extra grated parmesan and black pepper.