To be honest, I dunno how Muslim if go there can eat what.  That place is really not Muslim friendly. And even some of their foods, non-Muslim may find gross. Me different, I eat main bantai je. (I'm non-Muslim lah). Once went for steamboat (Vietnamese often have steamboat), my mother-in-law dared me to eat cow penis and cow testicles. I hantam saja, but the look of horror on waifu's face.... 

And even I go there, I'm the only foreigner around. Take flight to there-when check boarding pass, everyone take out IC, I'm the only one take out passport.

No international flights to there.

Another one didn't read. Yes, halal food no problem in Ho Chi Minh City, near Ben Thanh market. But if you read TS question in post #40, the place I go to is not Ho Chi Minh City. Hometown is in the provinces, from Ho Chi Minh City need to fly also.

And no Muslim there at all, foreigner also takda, I'm the only foreigner. Food sure is got pork and beef. No Malaysian food. All Vietnamese food only. Is just like Terengganu compared to KL Bukit Bintang.

And no, no tour for me.

TS is Muslim, I'm not