To cut a piece of meat, a fish or a vegetable into escalopes means slicing it more or less thinly at an angle.

To cut a piece of meat, a fish or a vegetable into escalopes means slicing it more or less thinly at an angle. To do this correctly with a piece of meat, a fish, shellfish or vegetables, you should use a small kitchen knife or filleting knife and cut crossways.

The purpose of this is to increase the surface area of what you have cut and to ensure uniformity, so everything looks tidy and smart.