You might find yourself becoming a regular at Lois, easily the nicest place in Tiddim. Admittedly, pickings are slim, but it's worth the walk uphill from the two guesthouses for the comfortable, relatively modern dining room and cheap noodles, omelette and, if you really want to do it up, the fried chicken (K8000). Also has real Tiddim coffee (K1500).
Lois Cafe
Top choice in Chin State