Spray pan with zero-calorie nonstick cooking spray and preheat over medium heat.
Combine Swerve® Brown Sugar Replacement, chili powder, cumin, salt, and pepper.
Spray each salmon fillet with zero-calorie nonstick cooking spray. Rub each fillet with about ½ Tbsp of the spice mixture.
Cook the salmon, flesh side down, for 4-5 minutes. Flip the salmon and cook another 5-6 minutes.
Add fish to a platter and serve immediately.