Preheat the oven to 400°F. Brush both sides of each flatbread with a little sesame oil and arrange them on a sheet pan. Pre-bake for 6 minutes, remove them from the oven, and set aside.
While the flatbreads pre-bake, whisk together the cream cheese, sour cream, Japanese mayonnaise, garlic powder, lime juice, sriracha, Worcestershire sauce, and soy sauce in a bowl.
Gently mix in half of the shredded imitation crab, and spread the mixture evenly over each flatbread.
Top each flatbread with the remaining imitation crab, followed by the shredded mozzarella, sliced green onions, and some freshly ground black pepper.
Bake for 13 to 15 minutes, until cheese is slightly bubbly.
Remove the flatbreads from the oven and top with fried wonton strips and drizzle with sweet Thai chili sauce to taste. Slice and serve.