Mix the minced garlic, sea salt, extra virgin olive oil, rosemary, and thyme leaves, and dried thyme in a bowl.Score the lamb with a knife and rub the marinade all over.
Add the chopped peppers, celery and carrots to a big bowl. Next, add the chopped rosemary, thyme leaves, and dried oregano with ¼ cup of olive oil—season with sea salt and freshly ground pepper. Mix well and let vegetables sit while lamb roasts.
Place the lamb in a dutch oven or deep roasting tray. Pour on the bottom of the pan the stock, lemon chunks, and bay leaves, cover, and bake for 3 hours at 140° C / 285°F.
After 3 hours take the pan out of the oven. Turn the heat up to 190°c / 375°F.
Transfer the lamb to a plate. Add all the veggies with their juices to the pan. Then, add the lamb on top.Place pan into the oven and cook for another hour.
Leave the lamb to rest for 10 minutes. Then, transfer it to a platter surrounded with the vegetables. Serve with roasted potatoes, bread, and a green salad.
Notes
Substitute the lamb shoulder with a leg of lamb. You can use bone-in roast but adjust the cooking time. Bone-in requires a longer roasting time.
You can add cubes of halloumi cheese to the pan at the last hour of roasting.
If you can't find fresh herbs, substitute with their dried versions.
Nutritional Info – Please remember the nutritional information provided is only an estimate and can vary based on the products used.