I wouldn't say that the small dishes are necessarily Taiwanese-style, but they are cooked on the spot. Hence, served hot.
All their dishes are quite small, hence it's easy to accidentally over-order, however, they are all quite salty and tasty so there is no need to order too much. For a family of 4, we ordered 6 dishes and a soup, and that was overkill. Their chai po omelet is not bad and pairs with the porridge really well. Another dish that is decent is their salted egg and bitter-gourd as it's not overly salty, but still tasty.
Salted fish and beansprouts
The dish is salty but the beansprouts are fresh and cooked just right
Be prepared to wait for your food though as this stall is really popular.
As you can see from the picture below, I had trouble even taking pictures before the food was touched because we were all so hungry.