I mix a 3 and 4. Some are fast meals, some are embellishments. Food can break a trip down or it can make a trip; a part of the journey. Sustenance looks a lot of different ways, or rather tastes a lot of different ways, looks a lot of different ways...and then there is the possibilities in anticipation embellished by the process, and gathering the ingredients.  I start planning a balance diet and I include fat, carbs., and protein cuz its important...we are what we eat, right... And then there is the how much to bring; I also bring extra cuz I have run short and that is not fun, its horrid. But then again I am a nut that likes nuts ;)