>>48030663They are capable of eating curry, sure, the protagonist creates that just so they can create a convenient dish everyone (themselves included) could eat out in the wild.
When it’s not the case, a visit to the homes of various NPCs in cities and towns shows pet trays and pet beds, and as the anime shows, even humanoid pokemon are relegated to the same status as quadruped more animalistic pokemon, by sitting on the floor and eating dry kibble from their pet bowl.