In the 2nd step you say add the meat, then wine etc, then, in the same step you say again: "return meat to pot". So when exactly do you return the...

I would ignore the "Return meat to pot" sentence at the beginning of paragraph #2. And follow the instruction to add the meat back in, with the lime zest, later in the paragraph. It just makes it easier to scrape/deglaze the pot, and combine all the new ingredients, when the pot is less full. Sounds delicious!