I used to buy Curry Bun from a nearby bakery. This is one of my son's favorite bread.
It is stuffed with potato but it could be too spicy and may not cater to those who can't take hot stuff.
When baking this, I made sure they turn out extra spicy. My son really loved this Curry Bun and I would be baking more often for his sake. Besides potato, you could use chicken or meat for a change.