Place the turkey tenderloins on a plate and set aside. In a small bowl, make the dry rub by mixing together all the spices & herbs (chili powder through cumin). Rub both tenderloins with the rub and set aside.
In a 6 quart Instant Pot, place the washed white beans in the bottom and add chicken or vegetable broth to just cover the beans (about 3 to 4 cups).
Place the sliced onion on top of beans and then add the seasoned turkey tenderloins. Pour the salsa verde over the turkey.
Cover with the Instant Pot lid; make sure it's locked and steam value is in the closed position. Select manual button, high pressure, for 40 minutes.
When finished, wait 10 minutes for Instant Pot to cool down or release pressure manually by taking a hand towel and carefully opening up the steam value on the lid. It is safe to open once all steam has been released.
Remove the turkey to a cutting board and cut into 1 inch slices. Place all the beans with the onions on a platter and place the sliced turkey on top. Serve with optional accompaniments, if desired.