Besides making noodles and rice dishes with thit heo nuong (Vietnamese grilled pork), you can also make banh mi thit heo nuong (Vietnamese grilled pork sandwiches).
The lovely part of making your own sandwiches is that it's loads cheaper. As if Vietnamese sandwiches weren't already cheap enough as it is. My preferred bread is Banh Mi & Che Cali's light, crispy, and buttery Vietnamese French bread, 3 loaves for $1. And you can stuff the sandwich with as much meat as you'd like.