Trying my hand at making my own backpacking meals. Currently on a dr prescribed low-FODMAP diet while waiting on diagnostics for suspected Chrohns and unfortunately most prepackaged stuff isn't FODMAP friendly.

Muffin recipe. They freeze well so one batch is great for multiple trips. Modified a bit to make them FODMAP friendly (pumpkin puree instead of applesauce, almond milk instead of milk). They go great with peanut butter.

I just got back from a backpacking trip with a friend who has exactly your concerns. I'd love to keep hearing about what works for you!