Ingredients:
1 1/2 lb (750 g) tuna steaks, 3/4 to 1 inch thick (about 2.5 cm)
1/4 cup (50 mL) lime juice
2 tbsp (30 mL) olive or vegetable oil
2 tsp (10 mL) finely chopped gingerroot
1/2 tsp (2 mL) salt
1/8 tsp (0.5 mL) ground red pepper (cayenne)
2 cloves garlic, crushed
Lime wedges, if desired