In a pot, soak the oats in hot water for 10 minutes. In the meantime, mash half the banana in another bowl, add the tea powder and whisk with half of the plant milk to combine.
Add the mixture to the pot and cook your porridge on medium heat until it almost reaches your desired consistency. If necessary, add the other half of the plant milk. Right before the end, add a pinch of salt and, optionally, add the protein powder with a bit more plant milk.
Transfer the porridge to a bowl, slice the other banana half, and add it as a topping together with the cherries and dark chocolate.