Turn on the instant pot to saute. Heat oil and saute the chorizo until dry and beginning to crisp up.
Add the onions and celery and stir-fry for another 1-2 minutes. Scrape the browned bits at the bottom as you stir-fry. Add the rest of the ingredients except salt and pepper. Stir.
Cover and press MANUAL (High Pressure) and set to 10 minutes. When the time’s up, shift from sealing to venting and allow the steam to escape. Uncover once the pressure has been released. Season with salt and pepper, to taste.
Serve immediately with some freshly chopped cilantro, sour cream and cheese on the side. Enjoy!