Italian in origin, carpaccio consists of thin shavings of raw beef fillet, which may be drizzled with olive oil and lemon juice or served with a mayonnaise or mustard sauce. The dish is often topped with capers and sometimes onions. It's generally served as an appetizer.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.