Heres a good semi-smoke recipe, that you can put in crock-pot after done to warm up and serve to your guests.
Brine loins in a mixture of water and soy sauce and desired seasonings for 24 hrs.
Take charcoal grill and light a small pile of bricketts in center
Surround with water soaked mesquite
Place brined loins above the water soaked mesquite and kind of near the middle hot pile of coals
Cover with top of BBQ and let the wood start to smoke and cook the fish
Remove fish when done cooking
Turns out smoky and delicious... toss in crock pot and bring to guests, can serve warm or cold... also can mix with mayo, etc to make a lil smoked tuna salad
ENJOY!