In a large pot heat olive oil over medium heat.
Add in diced potatoes, carrots, onion and celery season with salt, pepper, and thyme and sauté for 3-4 minutes continually stirring. (this brings out the flavors of the veggies for a quick soup)
Add in grated or finely chopped garlic and sauté for another minute.
Cover veggies with broth, cover with a lid, and simmer until veggies are tender- about 20-25 minutes. *you may need to add a little more liquid to cover veggies depending on how big your potatoes are.
After the veggies are tender, with a pastry cutter or something similar, smash some of the potatoes leaving some big chunks.
Add in milk. Only bring the soup to a light simmer after the milk, not a boil.
Add in about a cup of grated cheddar cheese (optional)
Season with salt, pepper, garlic powder, and add more thyme if needed.
Optional toppings are shredded cheddar cheese, diced green onions, fresh thyme, or crispy bacon pieces.