1 tbsp olive oil
1/2 lb spicy italian chicken sausage, casings discarded and sausage crumbled
1 bunch kale, tough stems and center ribs discarded and leaves coarsely chopped
1 tomato, roughly chopped
1/3 lb whole wheat fettuccine
1/3 cup reduced-sodium chicken broth
1/4 cup grated Asiago plus additional for serving
Heat the oil in a large skillet over medium heat. When hot, add sausage and brown for 5-7 minutes, breaking up lumps with a spoon.
Meanwhile, blanch the kale in a large pot of boiling, salted water for 5 minutes, uncovered. Remove the kale with a large sieve and drain. Return the cooking water to a boil, then add fettuccine and cook until al dente. Reserve 1/2 cup of the pasta water, then drain the pasta in a colander.
While the pasta is cooking, add the kale and tomatoes to the skillet and saute for 5 minutes. Add the broth, stirring and scraping up any brown bits in the skillet. Add the pasta and 1/4 cup of the pasta water, tossing until combined well. Stir in the cheese to incorporate, and thin with additional pasta water if desired.