In a large pot, heat the olive oil over medium heat. Add the sliced chicken sausage and cook until browned, about 5-7 minutes.
Add the minced garlic and cook for an additional 1 minute until fragrant.
Stir in the broccoli florets and cook for 2-3 minutes until they start to soften.
Add the orzo, chicken broth, Italian seasoning, salt, and pepper. Bring to a boil, then reduce heat to a simmer.
Cover and cook for about 10-12 minutes, stirring occasionally, until the orzo is tender and has absorbed most of the liquid.
Remove from heat and stir in the grated Parmesan cheese until melted and well combined.
Serve hot, garnished with fresh parsley.