Combine soy sauce, vinegar, onions, sugar, garlic, ginger root and sesame oil in small bowl. Place half of the marinade in large sealable freezer bag, reserving remainder for dressing. Add steaks to bag; seal and refrigerate for 30 minute or up to 2 hours, turning occasionally.

Lightly oil preheated grill or grilling pan. Remove meat from marinade and season with salt and pepper to taste; discard marinade. Grill over medium-high heat for 8 to 10 minutes, turning at least twice for medium-rare doneness 145°F (63°C). Remove from heat; let stand for 5 minutes.

Cut steak diagonally into 1/4-inch (5 mm) thick slices; toss with reserved dressing. To serve as layered salad, arrange over layer of individual endive leaves arranged on large platter; top with Mango Salsa. To serve as individual hors d’oeuvres, tuck strips of steak into individual endive leaves and top each with some Mango Salsa.

Mango Salsa

In small bowl, combine 1 mango, peeled and diced, 1 tsp (5 mL) sesame oil, 1 tomato, seeded and diced, 1/4 cup (50 mL) diced red onion, 3 tbsp (45 mL) chopped fresh coriander and 2 tbsp (30 mL) fresh lime juice. Season with salt and pepper to taste.