Have you heard of this? This is the diet our Pediatrician recommends whenever Joshy gets tummy trouble like he did yesterday! It really works great and sort of eases him back into normal food.
The BRAT diet (BRAT is an acronym)
B - Banana
R - Rice
A - Applesauce
T - Toast (White)
At our house this looks like...
We generally have bananas and Josh loves them. With the rice, we just go with some sort of rice cereal, like Special K (DRY). Josh does not care for applesauce so we leave that out. Finally, we never have white bread so either make do or send someone out to buy a loaf. The softer whole wheat that we buy seems okay anyway.
So anyway, give it a try next time you need to. It works for us!