Bring a large pot of water to a boil and add pasta. Turn heat to medium and allow pasta to cook for about 11 minutes, or to desired tenderness. Drain water and return the pasta to the pot.
Chop broccoli into bite-sized pieces and steam for about 5-7 minutes.
Add butter to a large pan over medium heat. Add minced garlic and cook for 2-3 minutes, until garlic begins to turn golden.
Stir in cream, bacon crumbles, and Parmesan cheese, whisking thoroughly until cheese is melted and well mixed. Add salt and pepper to taste
Add alfredo sauce to pasta and combine well. Add chicken and broccoli, stirring again to combine sauce and all ingredients. Top with additional grated Parmesan for garnish, if desired.