Here's what I like:

For breakfast, always my homemade backpacking granola. Yum!

Lunches: peanut butter and jelly on pita bread
canned sardines and pita bread or crackers
salami and cheese with crackers.

Dinner: Mountain House freeze dried. Always repackaged.

Pita bread is great because it doesn't take up much space, and you can cram it in tight without messing it up like regular bread or crackers.