Preheat oven (or air fryer) to 425 degrees. Line a baking sheet with parchment paper, add the salmon fillets, lightly drizzle with olive oil, season with salt and pepper and season with the Chile lime seasoning blend.
Bake in the oven for 9 to 10 minutes. Remove from oven and set aside.
For the spicy mayo:
Mix together the kewpie mayo + sriracha until well combined. Taste and adjust anything as needed. If you don't want it that spicy, mix together more mayo and use less sriracha. If wanting some brightness and acidity, add a little fresh lemon juice and mix again.
For the salmon cucumber bites:
Arrange the cucumber slices on a platter, top with a little spicy mayo, top with a piece of baked salmon, pickled red onions and sprinkle furikake over the top. Enjoy!