Thaw fish, if frozen. Rinse fish; pat dry with paper towels. Cut fish into 1-inch cubes. If you like, coat cubes with sesame oil. In a shallow dish, combine white and black sesame seeds. Roll fish cubes in sesame seed mixture.
In a large skillet cook fish cubes in hot olive oil over medium-high heat for 3 to 5 minutes or until browned on all sides and fish flakes easily when tested with a fork, but is still slightly pink in the center. Remove from skillet; let cool slightly. Cut fish into slices.
To serve, place Fried Wonton Chips on a serving platter. Top with each chip with greens, fish slices, Wasabi Aioli, and pickled ginger, if you like. Serve immediately. Pass any remaining Wasabi Aioli. Makes 4 appetizer servings.
Cut wonton wrappers into 1/4-inch strips. Carefully drop several at a time into deep hot oil (365 degrees F.). Fry for about 30 seconds or until crisp and golden. Remove with slotted spoon. Drain on paper towels.
In a medium bowl, combine mayonnaise, wasabi paste, minced garlic, bottled minced ginger, kosher salt and ground black pepper. Makes about 1/2 cup.