Heat olive oil in a large stock pot over medium-high heat and saut� onion, carrot and celery until softened, season with salt and pepper.
Add dry ranch mix and cook for 1 minute, stirring until veggies are evenly coated, then add chicken broth and chicken soup.
Stir together and mix in spaghetti, bacon and chicken, then bring to a boil. Reduce heat to low and cook for 15 minutes, or until noodles are cooked and veggies are tender, then stir in cheddar cheese and half & half.
Cook for another 3 to 5 minute, then serve and enjoy.