Preheat the oven to 275°F then line a baking sheet with parchment paper.In a large bowl, use a fork to mash together the banana with the peanut butter, maple syrup and salt, until smooth. It’s okay if there are a few small bits of banana, just try to get it as smooth as you can.Next add the oats, pumpkin seeds and peanuts (or whatever seeds/nuts you prefer) to the bowl and stir everything together. Pour the mixture onto the baking sheet and separate it with your hands. The chunks, or clusters, will stay whatever size you make them at this point so feel free to form bigger or smaller pieces with your hands, as preferred.Transfer the baking sheet to the oven and bake for 60 minutes, stirring the granola half way through. Baking it for 60 minutes should result in a nice, crunchy texture but cooking it longer results in less of a peanut flavor. So if you rather have a less crunchy granola with more peanut flavor, then feel free to cook it for a shorter period of time.Allow to the granola to cool for about 20 minutes then transfer to a large bowl or container for storing. Stir in the chocolate chips and serve immediately or store for later. It will keep in an airtight container for up to 2 weeks.