I've been traveling in Vietnam for the last few months and have found Vietnamese food to be excellent for the SCD. It has been easy (and cheap) to stay on the SCD while traveling here, and I don't feel deprived in the slightest.
To answer your question -- sometimes I include the broth and veggies from a bowl of Pho in a meal if I am really hungry. I actually think this is the best part of Pho, and have found that when I have the noodles on cheat day, they are the least satisfying part.
Other delicious Vietnamese foods that are okay during the week:
Sauteed Morning Glory and Garlic
Beef (or Chicken) with Lemongrass and Chili
Beef (or Chicken) with Onions and Ginger
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