I lived in the rural Palouse growing up. That region is responsible for producing a lot of the lentils, dry peas, chickpeas, et al in the US. There is a wide range of local cuisine in that region based on those ingredients that is absurdly delicious that I’ve never seen anywhere else. There are a lot of recipes online but they are materially different. There are distant analogues of some of it (e.g. falafel or some Indian cuisine) but it is pretty different from that. This was home food on the farms.
The thing to understand about legumes is that some of them, with appropriate preparation, can constructively absorb prodigious quantities of salt and fat. For example, you can fry lentils, which are delicious on their own (I think these are eaten in the Middle East), but that can be a prep step for further processing. Many people make cakes or patties, often pan frying them. Addictive as hell and salty, and you can’t eat a lot of it, but it tastes amazing and various forms are sometimes used as a meat alternative e.g. with eggs for breakfast.
The caveat, which I’ve learned the hard way, is that there is quite a bit of non-obvious knowledge on how to process the legumes for these dishes, and it has multiple stages. Texture and consistency control, as well as the interplay of oil and water, is not trivial. Lentils are the most complicated but also the most interesting, but the multiple processing steps are more work than is convenient. I left when I was a kid, so I’ve spent a lot of time trying to figure it out by trial and error. When I travel back there, local restaurants still serve these kinds of things. I could basically eat this stuff every day and never miss meat. They also make some interesting sauce/gravy type preparations from legumes, which are similar to things I’ve had in Germany (probably adapted, the population there is ethnically German).
They have variants of all these things based on lentils, chickpeas, and dry (split) peas, which are pretty different in practice.
I’ve also done a fair amount of work adapting classic Indian vegetarian food concepts to completely different European food contexts and use cases. These creations have been immensely popular; my prodigiously carnivorous friends request them.