Kabobs are a great crowd pleaser, whether you grill them outdoors or broil them indoors. You can turn a party interactive, by having your guest prepare their own skewers with their choice of vegetables,
Beef for kabobs is usually cut into 1 to 1-1/2 inch boneless pieces from the sirloin or round. Cubes cut from the round will benefit from a tenderizing marinade. Look for packages that have the most uniform size pieces.
You can trim any tender cut into the appropriate size cubes, taking care to keep the piece size as uniform as possible. Top sirloin or tenderloin is especially good choices.
Source: www.beefitswhatsfordinner.com