Spray Crockpot with nonstick cooking spray, or use a liner.
Lay the carrots, celery, garlic, and onion on the bottom of the Crockpot. Place roast on top of the vegetables. Pour in the broth. Smother the top of the roast with the cream of mushroom soup. Sprinkle the onion soup packet over top of that, and lastly sprinkle on the dried rosemary and thyme.
Place the lid onto the Crockpot and cook on low for 7-8 hours.
Serve with mashed potatoes and a dinner roll!
Notes
I decided to serve this roast on top of mashed potatoes, but you can also chop up red potatoes into large chunks. Place these on the bottom of the Crockpot with the rest of the veggies and cook as instructed.