01 -  Pat salmon cubes dry thoroughly with paper towels and transfer to a mixing bowl. 
 02 -  Combine Cajun seasoning, smoked paprika, garlic powder, salt, and ground black pepper in a small bowl. 
 03 -  Evenly sprinkle spice mixture over the salmon cubes, gently tossing until all sides are coated. 
 04 -  Heat olive oil or melted butter in a large nonstick skillet over medium-high until shimmering. 
 05 -  Arrange salmon cubes in a single layer in the pan without crowding. Sear 1–2 minutes per side using tongs, turning until surfaces are blackened and salmon is just cooked through (internal temperature 125–130°F). 
 06 -  Remove salmon from heat and let rest 2 minutes. Transfer to a serving platter, top with chopped parsley, and serve with lemon wedges.