I believe a thin slice of meat is called a fillet, however, this actually means that the meat is without bones as well.
doorstop
In the Lancashire of my youth it was called a dobers wedge
Soldier
Melba toast
Hunk
it is called a steak
A paillard is a slice of meat which is pounded thin and grilled.
steak
escallop
It's called julienne
Cantaloupe. Escalope; A thin slice of meat, especially veal or poultry.
stains
If the thin slices of potato are deep fried, they are known as 'crisps' in the UK.
It's a slice of meat dummy.
fibrous connective meat
crescent moon or waxing crescent
Tissue make the thin cucumber slice flexible