Plonk the lamb on a trivet into a sizeable camp oven, hack up veggies, (not to small) excluding the garlic bulb (the garlic bulb goes in hole, as seen in complimentary picture) and place them all around the outside of the roast to be. Avoid veggies touching the sides of the camp oven as this may cause some burn to veggies. The garlic bulb, well, each clove can be broken off and squeezed to reveal a delicious sauce.