Pulse the Portuguese sausage in a food processor until it matches the consistency of ground meat. (The onion, celery, and bell pepper can also be chopped in the food processor if you wish).
Put the Instant Pot on saute and cook the onion, celery, and bell pepper in a little bit of vegetable oil until soft.
Add ground beef and Portuguese sausage and cook until just browned.
Add chili powder, cumin, oregano, and garlic. Saute until fragrant.
Turn off the saute function. Add tomato paste, chicken broth, drained beans, worchestire sauce, and bay leaves. Give a little stir.
Close the Instant Pot, set vent to sealed, and push the chili setting, or cook at high pressure for 30 minutes according to your pressure cooker's settings. Meanwhile, cook white rice if using.
When Instant Pot is done cooking, release the pressure. Fish out the bay leaves.
Add 3 tbsp mayonnaise and stir to mix. Taste the chili and add salt as needed.
Serve over white rice if desired.