Steak mince?

steak mince? wth is that? minced up steak meat or something else?

never heard of it.

I believe it is a meat product (minced steak) used in Meat Pie for one. AKA grounded steak

As for a source of protein, check and see what cuts of beef are used and how much fat is used.

Agree with CB W, mince is chopped beef and probably cheaper cuts so while it would be high in protein it may not be a very 'lean' source.

Im not too sure about its details however I think I should stop eating it. What type of red meat should I be looking at to eat?

About the only red meat I eat is a very lean sirloin on the very rare and special occasion, and, if you want to count this, I do eat a lot of jerky due to it's low fat content.