This is a perfect meal prep recipe. For the apple topping, cook a bunch of apples and adjust the quantities to the number of apples you use. For the warm oatmeal, I like to portion the dry ingredients (oats, hazelnut meal, ground flaxseeds and store them in small airtight containers. When I want to eat the oatmeal, I just add milk or water and cook it on the stove or in the microwave on 600W for about a minute.