Grind your sirloin in a meat grinder. You can buy it already in a package already ground. I did not do that I ground my own.
Mix meat onion, parsley, breadcrumbs and eggs together. Season with salt and pepper. Add breadcrumbs to the outside of the meat or leave it off. Some people call the snitzel or the other. I'm not sure what this is called, but this is what my grandmother did.
Fry in a pan for 10 minutes until brown. About 5 minutes per side. Makes 4 sirloin burgers.