TSP is processed from the soya bean which has the highest protein content of all pulses. As such, it is an exceptionally good source of protein; whilst being low in fat and having a low calorific value. It is, of course, an entirely vegetarian product and is a "must" in the vegetarian store cupboard.
TSP is available as Mince and in Chunks; When rehydrated, it closely resembles meat in appearance and texture. It also has added Iron, Thiamin, Riboflavin and Vitamin B12.
Rehydrated TSP can be used in exactly the same way as mince or stewing steak, with the added advantage that cooking time is much shorter. As a general rule, allow 5-10 minutes for chunks.