I won't have my first fill until Jan. 18, but I picked up a handout regarding diet after a fill from my surgeon's office at my last visit.
It says:
TODAY (day of fill) - Clear liquids
TOMORROW and the FOLLOWING DAY - Full liquids (pudding, yogurt, etc)
DAY 3 and DAY 4 - Blended diet
DAY 5 and FORWARD - Diet as tolerated
It also says that if at any time on the day of the fill or the day after you are unable to tolerate clear liquids (vomiting, not keeping liquids down) that you need to call the office right away.
I hope this helps!