How much lamb for 10 people?

For 10 people, you typically need about 1 to 1.5 pounds of lamb per person, depending on whether it's the main dish and the overall menu. This means you should plan for approximately 10 to 15 pounds of lamb. If you're serving other hearty sides, you might lean towards the lower end of that range. Always consider the appetites of your guests and any leftovers you might enjoy!