
Heat a large skillet over medium high heat. Add bacon and cook until brown and crispy, about 6-8 minutes. Drain excess fat; reserving 1 tablespoon in the skillet. Transfer bacon to a paper towel-lined plate.
Add garlic to the skillet and cook, stirring frequently, until fragrant, about 1-2 minutes.
Stir in chicken broth, milk, chicken, pasta and Ranch Seasoning; season with salt and pepper, to taste.
Bring to a boil; reduce heat and simmer, stirring occasionally, until pasta is cooked through, about 15-16 minutes. If the mixture is too thick, add more milk as needed until desired consistency is reached.
Remove from heat and top with cheese. Cover until cheese has melted, about 2 minutes.
Serve immediately, garnished with bacon and parsley, if desired.