Preheat the grill to medium high heat or have your fire ready (hot coals are best).
Cut each banana lengthwise in the curve of each banana about 3/4 the way through.
With your hands, gently open the banana to make space to add fillings
Add fillings of choice.
Wrap banana tightly with heavy duty aluminum foil.
Place banana over hot coals for 8 to 10 minutes. Flip halfway through. If grilling, lower heat to medium and cook for 8-10 minutes and flip halfway through.
Remove from heat and let sit for several minutes to cool. Carefully remove foil and add additional toppings if desired.