Instant Pot Creamy Chicken Stew

vegetable oil

medium onion (diced)

celery (diced)

chicken broth

medium boneless skinless chicken breasts (about 12 oz.)

Salt and Pepper (to taste)

baby Yukon gold potatoes (halved)

baby carrots (halved)

cream of chicken soup

sour cream

whole milk (microwaved for 20 seconds)

Ranch Seasoning (equal to 1 ounce packet.)

green beans (frozen*)

strips bacon (cooked and crumbled)

Fresh Parsley (roughly chopped)