This is an edible cactus: both the fruits and the large paddles are edible (with care taken to avoid and remove the spines!). The paddles are the basis of dish nopales in Latin American cooking) (Opuntia tuna, the native Prickly Pear cactus):
This is the Hachyia Asian persimmons (Diospyros kaki), a persimmon that must be eaten soft. Gorgeous! It can stay on the tree and take some frost.
...below here are my two new friends, the taller is a coffee plant (Coffee arabica) and, yes, if I am lucky and diligent, I can make a cup of coffee from it...eventually! The shorter plant is a Owari Satsuma Mandarin (similar to a tangerine) (Citrus reticulata). I am able to get fruit from my other citrus, so am hopeful about this one! Both are waiting to be repotted and placed under lights in my attic.