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Instructions
Gather all ingredients.
To marinate the fish: Whisk olive oil, vinegar, lime juice, lime zest, garlic, honey, seafood seasoning, hot pepper sauce, cumin, chili powder, and black pepper together in a bowl until blended. Place tilapia in a shallow dish; pour marinade over fish. Cover the dish with plastic wrap and refrigerate for 6 to 8 hours.
To make the dressing: Combine sour cream and adobo sauce in a bowl. Stir in lime juice, lime zest, seafood seasoning, cumin, and chili powder. Add salt and pepper to taste. Cover and refrigerate until needed.
Preheat an outdoor grill for high heat and lightly oil the grate. Set the grate 4 inches from the heat.
Remove fish from the marinade, drain off any excess and discard the marinade. Grill fish pieces until easily flaked with a fork, turning once, about 9 minutes.
To assemble the tacos: Place fish pieces in the center of tortillas and top with desired amounts of tomatoes, cabbage, and cilantro; drizzle with dressing.
To serve, roll up tortillas around fillings, and garnish with lime wedges.