Preheat the Instant Pot, and spray the pot with cooking spray (or olive oil, if preferred). Add the meat to the pot with garlic powder; salt and pepper generously, and brown for about 3 to 4 minutes.* Add the onions, celery and carrots, and cook another 3 to 4 minutes. Turn off the pot, and add all other ingredients.** Put on the lid, lock it and set to manual high pressure for 8 minutes. (It will take a while to come to pressure with such a full pot, FYI). After the cooking time is complete, allow the pressure to release naturally (without using the quick release lever). Mine took about 25 minutes, FYI. Remove bay leaf, and serve.