- Preheat oven to 350 degrees. Grease or spray your mini loaf pans with cooking spray (I LOVE Wilton's Bake Easy spray, I use it for everything!) 
- In large bowl, mix sugar and butter. Stir in eggs until well blended. Add bananas, buttermilk and vanilla; beat until smooth. Stir in flour, baking soda and salt just until moistened. Stir in nuts and chocolate chips. Divide batter evenly among pans. 
- Bake 30-35 minutes or until toothpick inserted in centers comes out clean. Cool 5 minutes. Loosen sides of loaves from pans; remove from pans to cooling racks and let cool about an hour. 
- Place 3/4 cup chocolate melts inside disposable pastry bag. On 30% power, microwave pastry bag with melts for 30 seconds. Turn bag over and heat for an additional 30 seconds. Continue until melted (about 1 1/2 minutes). 
- Snip tip of disposable pastry bag and drizzle over mini banana bread loaves. Let dry completely (about 15 minutes). 
- Wrap mini loaves tightly in cling wrap and store either in refrigerator or freezer in a plastic storage bag. They're great for children's lunches or snacks on the go!