Multiple food storage systems are disclosed herein. One food storage system includes a main bowl that defines a first food receiving cavity. A secondary bowl is positioned in the first food receiving cavity and defines a second food receiving cavity. The secondary bowl includes a sidewall containing thermal energy storage material therein. A separate food storage system includes a main lid configured for use with a main bowl that defines a first food receiving cavity. A secondary bowl is positioned at least partially on and/or in the main lid. The secondary bowl includes a sidewall containing thermal energy storage material therein.