In a large pan heat the olive oil over medium heat. When hot, add the onions and saute until translucent and add the sausage. Break apart sausage while browning. When browned, drain off grease from sausage and set aside

In a soup pot, combine the potatoes, chicken broth and celery. Over medium high heat bring to a boil. Reduce heat to medium and simmer apprx 20 minutes until potatoes are tender

With a slotted spoon transfer the cooked sausage and onion mixture to the soup pot. Add in the 1/2 and 1/2 and cheddar cheese stirring until combined and heated through.

Serve with extra cheddar cheese sprinkled on top and cracked black pepper