Over low heat, steep the tea bags in the milk. Keep heat low enough to avoid milk from simmering.
Steep for about 10 minutes then remove bags and allow milk to cool down.
Meanwhile, milk together remaining ingredients (minus any toppings) in a medium sized bowl. Once milk had cooled down to room temperature, pour over oats and mix until evenly combined.
Store in fridge overnight. When ready to serve remove from fridge and top with additional preferred toppings.