First of all, we need to prepare some necessary ingredients, including fresh lamb chops, onion, garlic, salt, black pepper, rosemary and olive oil. Lamb then apply these seasonings evenly on both sides of the lamb chops and marinate for some time so that the lamb chops can fully absorb the flavors of the seasonings. Preheat the oven to 200 degrees. During the preheating process, we can put the baking tray into the oven and bake for 20-30 minutes until the lamb chops become golden and crispy, and the meat is tender and juicy.