My daughter tells me that if you look in the Polish aisle at Ts you can get unsalted cashews in a huge bag for the price of a tiny bag in the rest of the shop. Cunning, you can't find them by searching the website unless you know the Polish name.
If I put "nut" into a translator I get A ORZECHOWY N M ORZECH; M ORZESZEK; F G?OWA; M FIO?; F MUTRA; F NAKR?TKA; F ZAKR?TKA; F ?RUBA U SMYCZKA; M DZIWAK; M HERBATNIK
Cashew gives me M NERKOWIEC; M NERKODRZEW
I'll try putting some of that into Ts website see where it gets me.
Not sure what kind of price you were thinking of, but NATCO is a brand of dried fruit and nuts that are in Tescarps, Asd* etc. They tend to be a little cheaper than most.
..and if you look in the World Food aisle you pay a fraction of the cost for black pepper corns and lots of spices compared to the silly little jars in the spice section - ditto rice and various flours etc - anyone with gluten intolerance might want to try flat breads made with gram flour, which is ground chickpea - quite good straight out of the pan but no good a few mins later IMHO. World food aisle also good for soy sauce, sesame oil, chilli sauces etc
Asian stores even cheaper for lots of these sorts of things