The burrito is not going to survive in a soft bag with a banana on top

To keep a big burrito or thick sandwich from getting crushed, wrap it tightly in foil or butcher paper, then put it in a rigid container with enough headroom that the lid isn’t pressing down.

The foil is doing two things: holding the shape and keeping the filling from squirming out. Wrap it like a present — tight, with the ends tucked — then set it seam-side down in the container. That way, if something does bump the box, the force lands on the folded layers, not on the seam.

The real trick is the hard container. A plastic deli tub, a wide-mouth jar, or a dedicated sandwich box with a flat lid will absorb the crush. There’s no way around physics: a soft lunchbox is just a bag, and the contents are at the mercy of whatever sits on top. So heavy stuff goes on the bottom of the bag, and the burrito box goes on top.

If it’s a tall sandwich with layers that like to slide, run two long toothpicks through it before wrapping. They’ll keep everything in place until you pull them out. Don’t cut a whole burrito beforehand — the cut end is where it starts to unroll.

Future you doesn’t want to open a lunch box and find a flattened tortilla.