Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      pounds        beef filet
   1                    onion -- chopped
   1      tablespoon    salt
   1      pinch         ground black pepper
     1/8  cup           fresh lime juice

Preparation:

1 Cut beef into cubes 1x1/2 inch. Add to a medium mixing bowl along with the onion, salt, black pepper, and lime juice. Mix well, cover, and refrigerate overnight. 2 Preheat grill for high heat. 3 Thread beef on skewers, 6 to 8 pieces per skewer. 4 Lightly oil grate, and place kebobs on grill. Cook for 3 to 4 minutes per side, 12 to 16 minutes in all.