well the indian restaurants have the usual names of recipes.i.e vindaloo,korma etc....I would say 300-400b per head for a proper bit of nosh.
but i do know a place that is near on to what u stated above, roti's, stuffed mataba's, mutton currys, massamans, panangs, oxtail soup, even the green curry is good and i never eat that.
its a muslim restaurant (i kinda see it is a mix with indian and thai),and its well worth the trip over to prahatit in bkk to sample the goods....its called 'Roti Mataba'.... very popular (famous) place,nothing fancy,very basic setup and velly velly cheap please.