Ingredients for 5 servings:
1. 1/4 cup fresh lime juice
2. 1 1/2 tablespoons cabo wabo tequila
3. 1/2 teaspoon Mexican oregano (dried)
4. 1 1/2 teaspoons minced fresh garlic
5. 1 teaspoon onion powder
6. 1/4 teaspoon ground cumin
7. 1 tablespoon chopped fresh cilantro
8. 1 lb fresh yellowfin tuna fillet
9. 20 corn tortillas
10. 4 -5 cups shredded cabbage
11. 1 cup chopped fresh cilantro
12. 1 large lime, sliced into 10 wedges
13. 3 -4 chipotle chiles, canned,julienned
14. 5 ounces fat-free cheddar cheese or 5 ounces fat-free monterey jack cheese

Directions:
1. Mix together lime juice, tequila, mexican oregano, minced garlic, onion powder, ground cumin, and 1 tablespoon of fresh cilantro in a small bowl.
2. Place tuna fillet in a ziploc bag and pour marinade over fish.
3. Remove excess air from bag and seal.
4. Refrigerate for one hour, while you prepare your grill.
5. Prepare grill by spraying grill surface with non-stick cooking spray BEFORE applying heat.
6. Over medium-hot grill (gas, charcoal, electric) cook tuna, turning once, until cooked through (you may just cook on exterior if you prefer).
7. (The cooking time will depend upon the thickness of your fillet; tuna can be eaten rare. I suggest a fillet that is slightly pink in the center so it flakes easily without being overdone. Do not overcook your fillet, however.) Set aside.
8. Briefly heat corn tortillas carefully on grill.
9. Do not overcook, or they will get hard.
10. Break tuna into small chunks or shredded pieces and place about 1 1/2 ounces on a double layer of corn tortilla for each taco.
11. Add shredded cabbage and chopped cilantro and squeeze a wedge of lime over the taco contents.
12. If you wish a spicier taste, add the chilies.
13. Serve.