Turn your pressure cooker to the saute setting.
Add olive oil, celery, carrots, peppers, and green onions. Saute vegetables in the olive oil.
Add ground beef to the pan and brown the meat slightly.
Add beans, garlic, corn, and spices to the pressure cooker pan.
Add water to the pot.
Close pressure cooker lid and cook on high pressure for 15 minutes
Vent. and saute for 4-5 extra minutes in order for the chili to thicken.