Add pasta, garlic, chicken broth, cream, and spinach into a large, wide pot. Bring to a boil, and then lower stove temperature to keep it at a low boil, with lid only partially on. Stir a few times to mix. Boil for about 10 minutes. Remove lid and boil for an additional 5 minutes. Most of the sauce will be evaporated, but you want some remaining.
Turn off stove. Add in cheese and stir until melted. If desired, add black pepper to taste. Serve with fresh parsley if desired.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.