Meanwhile, in a large skillet, brown the sausage meat, garlic and hot pepper flakes in the oil, breaking up the meat into small pieces. Add the tomatoes and cook, stirring frequently, until all the liquid has evaporated. Add the wine and continue cooking for 3 or 4 minutes. Add the pasta and cheese and heat thoroughly. Adjust the seasoning. Add the arugula and toss lightly just before serving.
