For short camping trips outwith the winter months, why not leave the stove behind altogether?
Oatcakes, cheese, kabanos sausage, veg pate, dried fruit and nuts, with some chocolate to finish, are much more palatable to me than some rehydrated mush, and are packed with calories, and cereal bars provide a simple breakfast, with no need for bowls, beakers, spoons etc.
For drinks, what could be better than water from a mountain spring or lochan?