Preheat oven to 400°F
Pat steelhead dry
Season with salt, pepper, and olive oil
Place on a lined baking sheet or in a lightly oiled skillet
Add lemon slices, garlic, or herbs if desired
Bake for 10 to 15 minutes, until the fish flakes easily
Check for an internal temperature of 145°F
Remove from heat and rest for 2 minutes
Serve immediately