This is a versatile recipe, where other vegetables or even other meats, such as chicken, could be substituted. If using meat in the recipe, do allow longer simmering time until the meat is cooked through. Shrimp do not need a long cooking time however, and only need to cook until they turn pink and curl. Overcooking them would make them tough. But tofu is best in this recipe, as it absorbs the flavor of the curry paste, and also is very healthy. Recipe by Judy Bastyra. Posted by request.