Prep the salmon: Pat the salmon dry with paper towels. Cut into even 1-inch cubes for quick, even cooking.
Place in a large bowl.
Season: Add salt, black pepper, paprika, onion powder, and a pinch of red pepper flakes if you like heat. Toss gently to coat.
Make the garlic butter: In a small bowl, combine melted butter, olive oil, minced garlic, and lemon zest. Pour over the salmon and toss again.
Add the coating: Sprinkle in the grated Parmesan.
If using panko, add it now. Fold gently until the bites are coated but not clumpy.
Choose your cooking method: Pan-sear: Heat a large nonstick or cast-iron skillet over medium-high with a drizzle of oil. Add salmon in a single layer without crowding.
Cook 2–3 minutes per side until golden and just cooked through.
Oven-bake: Preheat to 425°F (220°C). Arrange bites on a parchment-lined sheet, spaced apart. Bake 8–10 minutes, then broil 1–2 minutes for extra color.
Air fry: Preheat to 400°F (205°C).
Place bites in the basket in one layer. Air fry 6–8 minutes, shaking once, until crisp and flaky.
Finish: Squeeze fresh lemon over the hot salmon. Sprinkle with chopped parsley.
Taste and adjust salt or pepper if needed.
Serve: Plate with extra lemon wedges. These are great over rice, quinoa, or a simple arugula salad. A side of roasted broccoli or green beans pairs well too.