On a 6- or 8-quart Instant pot, press [sauté] and let the appliance preheat.
Add oil, shallots, and garlic to a preheated pot.
Add turkey, chili powder, salt, and pepper to the pot. Cook for about 4 minutes, breaking the turkey into small pieces with a spatula. As you break up the turkey, ensure that seasonings, shallots, and garlic are evenly mixed with the meat. The meat doesn't have to be cooked through.
Add beans, tomatoes, and green salsa to the pot. Mix well.
Press [Cancel] on the Instant Pot to turn off the [sauté] function.
Close the lid, set the pressure vent to [sealing], and press [Pressure Cook] on High or [Manual] for 6 minutes.
Release pressure using [Quick Release] by turning the pressure valve to the [Venting] position.
Once pressure Is released, open the lid, stir, and add thawed cauliflower rice. Stir again.
Turn the [sauté] function back on to ensure the thawed cauliflower gets fully warmed up and doesn't cool off the chili until It starts to boil, then press [cancel] and serve hot with your favorite toppings.