If you can resist the chips, i would say quite easy.
Everywhere we went served the main (e.g. Stew, burger, chicken) and then charged extra for all the sides (chips, veg, salad). The prices were astronomical (we didn't have time to get out of the city to hunt for non-tourist traps).
So it was quite easy to just buy the protein.
But we had a great time.
Watch out for the chocolate too. Lots of shops. Lots of white, milk and dark. Buy carefully!