[ohyes]

I think with pineapple the bun would be all soggy.

A piece of bread and some pineapple would be fine for lunch I think. It would be weird because we don’t think of that combination of foods as a typical sandwich.

Pineapple has a much different flavor profile than jackfruit. Jackfruit is a bit of a blank slate, and has a texture that is the right mix of meaty and tender. Pineapple is very sour and juicy, it’s completely different food.

We think nothing of cucumber sandwiches, tomato sandwiches, eggplant sandwiches, various bean products (tofu, black bean, falafel).

I think you’re playing on the (gustatorily) incongruent nature of a ‘pineapple sandwich’ and conflating that emotion with the relative nutritional qualities that would comprise a ‘pineapple sandwich’ (probably not far off a cucumber sandwich with quince paste).

[darkpuma]

Heh, I once got a "watermelon steak" at a vegan restaurant in Seattle. Let me tell you, a slice of grilled watermelon is not even remotely similar to a steak.