You'll be tempted to not eat before you workout, but you need to fuel your tank to avoid burning out your engine. Think of banana's as natures power bar. They're fast acting carbohydrates and are packed with potassium, which helps with nerve and muscle function.
Your body will be in recovery mode, so you'll need to get some protein in there quick. Lean protein like chicken is ideal because it helps repair as well as build your muscle.