You are here: Home » Recipes » Rustic Walnut Rapini Pasta Rustic Walnut Rapini Pasta Recipe by California Walnut Board Yield 6 servings Prep 10 mins Cook 20 mins PrintEmail Ingredients 1/2 pound hot Italian sausage meat, crumbled1 cup sliced red onion4 cloves garlic, minced1 cup California walnut halves, toasted1/2 pound rigatoni1 bunch rapini, roughly chopped (about 6 cups)1 tablespoon lemon zest1/2 cup grated Parmesan or Pecorino cheese Instructions In large skillet, brown sausage meat over medium high heat, breaking up pieces with the back of a spoon. Add onion and cook until softened, about 5 minutes. Stir in garlic and cook 1 minute. Stir in California walnuts. Meanwhile, cook pasta according to package instructions. Add rapini during the last minute of cooking. Reserve 1/2 cup (125 mL) of the pasta water in a measuring cup. Drain pasta and rapini in colander. Add reserved pasta water, lemon zest and Parmesan cheese to the walnut mixture. Stir in pasta and rapini. Serve with additional Parmesan cheese and chili flakes if desired.