After chatting with some friends that were from the CR I had learned that just like here, there is a belief that some food provides powerful benefits / important meanings.
Apples: If an apple is given to goats on Christmas Eve, it is believed that their milk will be sweet.
Garlic: Garlic is rarely missing from any Christmas dinner as it is believed to provide strength and protection. Often, a bowl of garlic is simply placed beneath the dining room table.
Honey: A pot of honey is usually placed on the dinner table, believed to guard against evil.
Mushrooms: Mushrooms, thought to give health and strength, are used in a traditional meal called kuba, prepared from dried mushrooms, barley, garlic, onions, and spices. Mushroom soup is often served as an appetizer before dinner.
Sheaf of Grain: A bundle of grain, dipped in holy water, is often used to sprinkle the house to prevent it from catching fire in the coming year.
Poppy seeds, Peas, Wheat, and Barley: These grains are fed to hens on Christmas Eve to promote abundant eggs in the coming year.
Vánočka or Christmas Bread: If this bread is fed to family cattle on Christmas Eve, it is believed that there will be ample milk in the new year. Putting a few vánočka crumbs in front of bee hives will promote abundant honey.