Low-Carb Cheesy Cauliflower Soup with Bacon and Green Chiles (Instant Pot or Stovetop)

cup Bacon, cooked

Cheese and crumbled bacon to add at the table

Anaheim chiles, with juice

large head Cauliflower

Garlic powder

Yellow onion, medium small

Chicken broth

Kosher salt

Olive oil

Cheddar, grated sharp yellow

Cheddar, grated sharp white

Milk