Prepare the veggies. Chop the green onion, mince the garlic, grate the carrots, dice the onion, chop the celery, peel the potatoes, and chop them into 1-2 inches chunks.
In a large soup pot, sauté the onion, celery and carrots with a tablespoon of olive oil until they are soft.
Add the chopped green onions and garlic and season with white pepper. sauté these for 2-3 minutes.
Go in with the potatoes and chicken broth and let these cook on medium heat for 20 minutes.
Roughly mash the potatoes with a fork then add shredded cheese and cream and cook on low heat for 20-30 more minutes.
Do a taste test and adjust the seasoning if necessary and your Saltgrass potato soup is ready to be served. Garnish with shredded cheese and chopped green onions.