We put a couple of toys in the bowl to slow down the eating.
When my dog vomits I keep a close eye on him. I check gums for color, the pulse, stomach for tightness or bloating and just general behavior to see if he's distressed. The last time this happened to my puppy (almost 10 months) it was obvious he was in distress. We went straight to the vet. If your puppy is acting normal now she is probably fine.
I know it's very upsetting when your puppy is ill.