In a medium saucepan, bring the water to a boil. Turn the heat down to low and add the oatmeal and salt. Cook, stirring occasionally, for about 5 minutes, until the oats are tender and have absorbed most of the liquid. Add the bananas, peanut butter, almonds, and agave syrup and stir to incorporate evenly. If the oatmeal is too thick, add a splash of milk.