Set grill or oven to 375F.
Spray tilapia fillets with olive oil and add seasonings. Rub the seasonings into the fillets.
Place the fillets on an outside grill – be sure to spray the grill with cooking spray first – or place them on parchment paper or nonstick baking sheet.
Bake for about 8 to 10 minutes. The flesh of the tilapia should be completely white.