In a small bowl, combine the ingredients for the Sriracha Aioli. Refrigerate until ready to use.
On a large plate, combine all of the spices to make the blackened seasoning. Dredge both sides of each fish fillet in the spice mixture. In a large saute pan, heat the olive oil over medium-high heat. At the first wisp of smoke from the pan, add the fillets, working in batches if needed. Cook for 2 -3 minutes on each side. (Do not move the fish fillets around while they're cooking. Leave them be until they're ready to flip). Transfer the cooked fillets to a cutting board and slice each fillet in-half, vertically - making 8 pieces.
To serve, top each tortilla with the fish, avocado-lime slaw, jalapeños, cilantro, and drizzle with the Sriracha aioli. Serve with extra wedges of lime and enjoy!
