Prepare your ingredients by dicing the onion and cleaning and chopping the kale. Make sure to chop the kale into small enough pieces as it can be kind of difficult to chew if it is cut too large.
Next, prepare your water for the noodles by salting it and putting on the heat to begin boiling. Once boiling, add your rigatoni pasta and cook until al dente. You can start making the sauce while you wait for the water to boil.
In a pan, cook down your Italian sausage. When it almost done cooking, add in your onion, sun dried tomatoes, and kale. Allow these ingredients to cook down for a few minutes, or until the kale becomes tender.
Sprinkle in onion powder, garlic powder, Italian seasoning, and black pepper into the mixture to enhance the flavors.
Pour heavy cream into the pan, creating the creamy base for the sauce. Let it come to simmer before adding in your parmesan cheese. Once your cheese is melted, salt to taste.
Once the rigatoni is cooked, drain it and combine with the flavorful sausage and kale mix.
For a bit of heat, top the dish with red pepper flakes if desires. Serve hot and enjoy!