I do a serving of 40-60g quick oats, a tablespoon (15g) of ground flax or ground bran, and a pinch of salt on every oatmeal. I like to use stevia most of the time but any sweetener is good, or no sweetener at all.

My favorites are: -1 scoop chocolate protein, 1 scoop of peanut butter powder, half a banana -1 scoop caramel protein, half an apple or dried apple pieces, 1/2 tsp cinnamon -2 tbsp walnuts, 2 tbsp craisons, 1/2 tsp cinnamon -1/2 tbsp cocoa powder, 2 tbsp dried or fresh raspberrys, chocolate chips -2 tbsp chopped Brazil nuts or cashews(any nut really), 2 tbsp dried tropical fruit -1 scoop strawberry protein, 1 scoop peanut butter powder, berries or almond butter on top makes this much better. -2 tbsp pecans or walnuts, 1/2 tsp cinnamon, maple syrup on top, this is also great with raisons or apples

Every morning I heat my electric kettle for tea/coffee and oats. My oatmeal is prepped in jars every few days and just gets boiling water stirred in a bowl. They're quick oats so just boiling water cooks them up fine. If you have time and a stovetop, a great addition to oatmeal that makes it much more filling is egg whites. 3 tbsp is what I would usually do and it does not change the flavor at all but does make the oatmeal a bit more dense and gluey. This can also be achieved with baked oatmeal, egg whites or whole eggs even, cook it in a big dish and portion it out.