Preheat the oven to 375 degrees.
In a bowl, combine the flour, salt, and baking powder. In a smaller bowl, mash the banana, and add the sugars, spread, and vanilla. Mix dry and wet ingredients together. Slowly add oats, cereal, chocolate chips, and chopped nuts. Spoon into 1 1/2- inch rounded balls. Flatten slightly and bake for 8 - 10 minutes.