Preheat a cast iron skillet over medium to medium high heat.
Brown italian sausage and season with salt and pepper.
While sausage is browning, slice onions and chop aritchoke hearts.
Remove browned italian sausage and transfer to a plate and set aside.
Pour olive oil in with the fat from the sausage and saute onions over medium-high heat until just softened.
Turn the heat to medium, add rice and mix thoroughly until coated with oil.
Let the rice cook with the onions for about 1-2 minutes.
Add your white wine vinegar and let the rice soak that up.
When rice has absorbed all wine, add enough broth to cover the rice (about 1 cup).
Stir over medium heat until broth is absorbed.
Continue this process adding broth one cup at a time until rice is tender, but not mushy. This will take about 20-25 minutes. The end result should be slightly saucy.
Add your sausage and artichoke hearts to the skillet, season with salt, stir until combined, then turn the burner off.
Add your arugula and stir to combine.
Stir in 1/2 cup parmesan cheese.
Serve immediately with remaining cheese