In the Instant Pot, set to Sauté, High, or a 12-inch Cast Iron Skillet, heat olive oil, and sauté diced onion until translucent and just beginning to brown.
Once the onion is browning add chopped bacon and cook just until it begins to crisp up.
Add Garlic mixing well and cooking until it becomes aromatic.
Stir in the pork chorizo until the whole mixture begins to resemble chili.
Pour this mixture into the pressure cooker pot and stir in the rinsed beans.
Add the can of fire roasted tomatoes, chicken broth, and water stirring to combine.
Stir in the chili powder, cumin, black pepper, and Mexican Oregano.
Sprinkle the top with a pinch or two of Epazote.
Seal the pressure cooker and set to 50 minutes on the soup setting.
When cooking is done allow for a natural release for at least 15 minutes and then you can quick release if need be.
Serve garnished with fresh cilantro and ENJOY!