2 lbs of tri-tip will serve approximately 4-6 people, depending on the size of the servings. It is a generously portioned cut that packs in plenty of beefy flavors.  A typical 2 lb tri-tip can provide about 8 sandwiches or 12-16 small slices for an entrée.  Tri-tip is also great for roasts, stews, and stir-fries, so it can easily be stretched to feed more people.  By including sides such as salads, roasted vegetables, or grilled potatoes, you'll be able to get even more servings out of a 2 lb tri-tip.