@Rachael I often will offer her a small snack afterwards but if she doesn’t want it I tend to give her a banana between breakfast and lunch time
I'd say at least a couple of hours, then a small snack like some fruit 🙂
Depends on your routine - when do they have lunch ? I would offer a snack in between breakfast and lunch and also lunch and dinner about half way between x
1-2 hours - although my son would eat breakfast and then follow it up with a snack about 20 minutes later lol