Sprinkle chicken with black pepper.
Melt butter in large skillet over medium heat.
Add garlic and chicken to skillet. Cook till chicken is done.
While chicken cooks, steam broccoli and cook pasta in separate pans.
Remove finished chicken from pan.
Add chicken flavor boost packet and about 1 cup of pasta cooking water to skillet, scraping any browned bits from chicken into the sauce.
Drain pasta and place back in pot.
Toss pasta with contents from skillet and the broccoli.
Season with kosher salt. Add extra pasta cooking water, if needed to keep it from being dry.
Stir in Parmesan.
Serve with chicken.