In a small bowl whisk together the mayonnaise, sambal, rice vinegar and soy sauce until thoroughly combined.
For the shrimp-stuffed baked avocados:
Heat oven to 400ºF (200ºC).
Scoop out a little extra circle around the avocado and reserve for another use.
Heat a large sauté pan over medium heat, add the olive oil and heat through. Add 2 tablespoons of the butter and allow to melt.
Season shrimp on both sides with salt and pepper then add to the pan, cooking until pink and no longer translucent, about 2 minutes total.
Remove from pan and chop. Add the shrimp to a medium-mixing bowl with the spicy mayonnaise, bacon, sesame seeds and half of the green onions.
Return the sauté pan to medium-low heat, add the remaining butter and allow to melt. Add the panko breadcrumbs and toast, stirring constantly until golden brown, about 2 minutes. Remove to a small bowl. Stir half the breadcrumbs into the shrimp mixture.
Pile about ¼ cup of the mixture into the center of each avocado half. Top with the remaining panko and bake until the top is browned, about 15 to 20 minutes. Sprinkle with remaining green onions and sesame seeds then serve immediately.