Set an 8-qt Instant Pot® to the "SAUTE" setting.
Pour in the olive oil and heat.
Add onions, celery, green peppers, jalapeño pepper, and garlic. Saute' for no more than 5 minutes.
Add beef and pork and continue to brown on saute' setting for no more than 10 minutes, making sure to break up the meat into crumbles while cooking.
Drain excess fat and discard.
Stir in tomato paste, tomato sauce, peeled tomatoes, and V-8 Spicy Vegetable Juice.
Add all of the spices.
Add all of the beans and the corn.
Stir well to combine.
Add freshly cracked salt and black pepper to taste.
Select manual setting; adjust pressure to high, and set time for 15 minutes.
When finished cooking, quick-release pressure according to manufacturer’s directions.
Serve immediately, garnished with sour cream, Mexican cheese blend, chopped cilantro, and chopped green onions, if desired.