Creating Japanese Baked Dynamite Mussels can be straightforward with these step-by-step instructions:

1. Preheat your oven: Set it to 375°F (190°C).
2. Prepare the mussels: Place the cleaned mussels on a baking tray, open side up.
3. Make the dynamite sauce: In a bowl, mix mayonnaise, Sriracha sauce, minced garlic, soy sauce, and sesame oil until well combined.
4. Top the mussels: Spoon the dynamite sauce generously onto each mussel.
5. Prepare the topping: In another bowl, combine panko breadcrumbs and melted butter. Stir until the breadcrumbs are coated.
6. Add the topping: Sprinkle the breadcrumb mixture evenly over each mussel topped with the sauce.
7. Bake: Place the baking tray in the oven and bake for about 15-20 minutes or until the mussels are cooked and breadcrumbs are golden brown.
8. Garnish: Remove from the oven, and sprinkle with chopped green onions and parsley for added freshness.
9. Serve: Arrange on a serving platter, and serve with lemon wedges on the side.

Following these simple steps will help you create a delightful dish that captures the essence of Japanese cuisine.