Out-of-This-World Orecchiette Pasta | Cooking Professionally

Ingredients

• 2 tablespoons olive oil
• 1/2 onion, diced
• salt, to taste
• 8 ounces spicy Italian sausages, casings removed
• 3 1/2 cups low-sodium chicken broth, divided
• 1 1/4 cups orecchiette pasta, plus more, to taste
• 1/2 cup arugula, roughly chopped
• 1/4 cup parmesan cheese, finely grated