Hey,
What about "Common sense"...
You lost an engine after T/O on a plane supposed (and certified) to fly with 2 engines...The dammage is obvious..because you lost 50% of your thrust..
Do you really need a written procedure to determine what should be the best course of action..???
For sure, you have to determine a lot of parameters to prepare for a immediate return to the runway you just left..but this is our job..No ??