Living in the subtropics of Florida, I have a luscious affection for warm-water fish. Grouper, snapper, seriously big creatures that may approach or exceed the weight of the fisherman that brought them in. Northern fishermen have their own trophies -- halibut or cod get to similar sizes, and sometimes I find that fillets from these fish can work just as well in a recipe as fish to which I'm more accustomed. The fish itself may not be as important as the size of the muscle grain, or the tenderness of the fillet.
I was in a Latin mood, and grouper was fresh at my market, but if I were in a zanier world-spanning mood, it would have been interesting to do a southwestern salsa verde with a halibut or hake fillet -- neither of which exist within 3000 miles of Mexico, but both approach grouper in texture and savor. When in a regional mood, the sauce itself, and the seasonings, may matter more than the species of the protein.
However, the grouper was there, and I grabbed it.

( tangy spicy goodness follows... )
I was in a Latin mood, and grouper was fresh at my market, but if I were in a zanier world-spanning mood, it would have been interesting to do a southwestern salsa verde with a halibut or hake fillet -- neither of which exist within 3000 miles of Mexico, but both approach grouper in texture and savor. When in a regional mood, the sauce itself, and the seasonings, may matter more than the species of the protein.
However, the grouper was there, and I grabbed it.

( tangy spicy goodness follows... )