Slice the sweet potato width way into rounds (approx 1cm in thickness)
Add the potato, oil and cinnamon to a mixing bowl and mix with hands until the sweet potato is evenly coated.
Place the rounds on an lightly oiled tray and bake for approx. 12-15 mins on each side (depending on how large your sweet potato is).
Remove from the oven and allow to cool.
Arrange in groups of 2 rounds that are similar in size.
Spread one round with peanut butter, add banana slices and then top with the second round.
Makes approx. 10 sandwiches depending on length and thickness of potato.
Try to find large and fat sweet potatoes to make this. If too long and skinny you will have tiny sandwiches.Nutritional Information is a rough guide only, calculated using an online nutrition calculator.