Step 1

Heat the olive oil in a large, deep skillet over medium heat.

Step 2

Add the onion and the salt to the skillet and cook, stirring frequently, until the onion softens and turns translucent, about 5 minutes.

Step 3

Add the sausage to the onion and cook until browned, about 5-7 minutes.

Step 4

Add 1 1/2 cups of the chicken broth to the sausage mixture and bring to a boil, while scraping the browned bits from the bottom of the pan using a wooden spoon.

Step 5

Add the pasta and the remaining broth to the sausage mixture and simmer until the pasta is cooked through and most of the broth is absorbed, about 15 minutes.

Step 6

Add the arugula to the sausage/pasta mixture and stir until the arugula wilts.

Step 7

Sprinkle the pasta with the cheese.

Step 8

Serve.