Add olive oil to the bottom of the slow cooker, or spray with non-stick spray
Place roast in slow cooker, and add onions
Sprinkle half of the onion soup mix over the roast. Press some into the meat to help it stick
Add garlic cloves, potatoes, carrots and celery on top of the roast. Sprinkle remaining soup mix over the veggies
Pour beef broth into the slow cooker, place lid on top, set temperature to low, and cook for 8 to 10 hours on low or 5 to 6 hours on high
