I just made this and it's quite good. It's inspired by Ben & Jerry's Chunky Monkey, one of my favorite flavors, but the recipe is my own adaptation after looking at banana ice cream recipes in several cookbooks. Let me know what you think, sp that I can possibly refine it further.

Peel the bananas and cut into chunks. Puree in blender with the lemon juice. Add vanilla and sugar and blend until smooth. Add milk and blend again, briefly. Add cream, blend thoroughly.

Churn in ice-cream machine according to manufacturer's instructions. A few minutes before finished, add nuts and chocolate chips; continue churning. Makes 1 generous quart.