Preheat the oven to 400°F. Line a baking sheet with foil or parchment paper.In a bowl, mix together the crab, mayo, and 1/4 cup sliced green onions. Taste and season with salt and pepper.Place a single layer of chips on your lined baking sheet. Top with the crab mix and a generous sprinkling of cheddar. Bake for 5-7 minutes or until cheese is gooey and melted. Remove from the oven and top with the remaining sliced green onions, diced avocado and seaweed strips. Drizzle with sriracha, if using. Enjoy hot!