01 - Bring a large pot of salted water to a boil. Cook gnocchi according to package instructions. Reserve ¼ cup of pasta water, then drain and set aside.
02 - While gnocchi cooks, 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. Remove sausage from skillet and set aside.
03 - In the same skillet, add onion and cook until softened, about 3 minutes. Add garlic and cook for 30 seconds until fragrant.
04 - Add chopped kale to the skillet and cook, stirring, until wilted, about 2 to 3 minutes.
05 - Return sausage to the skillet. Pour in chicken broth, scraping up any browned bits from the bottom. Stir in heavy cream and parmesan cheese. Simmer gently for 2 to 3 minutes until sauce slightly thickens.
06 - Add cooked gnocchi to the skillet and toss gently to coat in the sauce. Add reserved pasta water as needed to reach desired consistency.
07 - Season with black pepper, red pepper flakes (if using), and salt to taste. Serve immediately garnished with extra parmesan cheese and freshly ground black pepper.