Heat 1 tablespoon olive oil in the inner pot on the Saute setting. Add beef to pot, season with salt and pepper, and brown on all sides.
Add the carrots, celery, soups and water to the pot. Set on "Meat" for 25 minutes, then natural release for 10 minutes.
Stir in the brown gray mix, then carefully stir in the noodles, trying to minimize the amount you break up the carrots. Set to "sauté" and cook for another 5 minutes, loosely covered with the lid, until the noodles are tender.