Items allowed through security include baked goods, meats, stuffing, fresh fruits, and vegetables.
Ice packs are allowed, but they must be frozen solid at screening checkpoints, authorities say.
Meanwhile, anything that's larger than 3.4 ounces and can be spilled, spread, sprayed, pumped, or poured must be in a checked bag.
More than 18 million people are expected to be screened from Tuesday, November 26 to Monday, December 2.
For more information on what you can and cannot bring on a flight, check tsa.gov.