Preheat the oven to 400°F (200°C)
Pat the fish dry with paper towels
Place the fish on a baking sheet or in a baking dish
Brush or drizzle with oil or melted butter
Season with salt, pepper, and any desired herbs or spices
Add lemon slices or other optional toppings if desired
Bake until the fish is opaque and flakes easily with a fork
Check for doneness based on thickness, usually 10 to 15 minutes
Remove from the oven and let rest for a few minutes
Serve immediately