I found this to be very helpful.
Before:
1. Dried fruit (get a mixed bag)
2. Nuts (all kinds)
3. Banana
4. Peanut butter
5. Granola
After:
1. Protein shake (this is key)
2. Banana (love)
3. Yogurt with granola
4. Eggs, fish, or chicken
5. Fruit (all kinds)
These foods really help you get the most out of your workout.