Heat flat top grill/griddle to medium heat
Drizzle flat top grill/griddle with olive oil
When oil is hot add garlic to infuse the olive oil with flavor
Add fish to flat top, spreading it out in one layer
Season fish with 2/3 of seasonings (salt, Old Bay, chili powder, cumin & paprika)
When fish is 1/2 way cooked (you will know when the fish is white and flaky around the edges) flip it over
After flipping use the remaining 1/3 of seasonings to season that side
Close the lid of the grill & let the fish finish cooking (1-2 minutes)
Once the fish is white and flaky all the way through it is done. Remove it from the grill.
Put fish taco together the traditional way by adding cooked fish, shredded lettuce, cilantro & a squeeze of lime... or go crazy and add any other toppings you like