1 Preheat oven to 300 degrees F (150 degrees C). 2  Heat olive oil in a skillet over medium-high heat. 3  Season lamb chops with salt and pepper. 4  Sear lamb in hot oil until browned, 1 to 2 minutes per side. 5  Remove chops to a plate to drain, reserving drippings in the skillet.eady In. 1  Preheat oven to 300 degrees F (150 degrees C). 2  Heat olive oil in a skillet over medium-high heat. 3  Saute onion and garlic in reserved drippings until tender, about 5 minutes. 4  Transfer drained lamb chops to a baking dish; add onion mixture. 5  Bake in preheated oven for 3 hours. 6  Remove lamb to a serving platter.