Prepare the fish
Preheat the oven to 200°C.
Season the sea bream inside and out with salt, pepper, and your favorite spices.
Stuff the inside of the fish with tomato slices, lemon slices, the rosemary sprig and a few slices of onion.
In a baking dish, place a bed with the remaining onions. Put the fish on top and drizzle with a little oil.
Cover with foil and bake for 25 minutes. Then, remove the paper and let it brown for 10 more minutes to form a light, aromatic crust.
Grandpa’s advice: the lemon slices and onion cooked inside the fish release steam and aromas that gently penetrate the meat, enhancing its flavor without drying it out.
