PRAYING AND BLESSING
It is safe to say that the most common occasion for prayer is at mealtime. Christians follow Jesus’ lead by blessing the food before the meal. Jews have a tradition of blessing God after a meal as commanded in Deuteronomy 8:10. Here are examples of Jesus blessing food:

Matthew 26:26: While they were eating, Jesus took some bread, and after a blessing, He broke it and gave it to the disciples, and said, “Take, eat; this is My body.”

COMMENTARY: See Bread, Food, Wine and Oil for understanding of the symbolic meaning of bread and eating bread. Also see this link for the spiritual meaning of giving a blessing.

Matthew 14:19: Ordering the people to sit down on the grass, He took the five loaves and the two fish, and looking up toward heaven, He blessed the food, and breaking the loaves He gave them to the disciples, and the disciples gave them to the crowds,

COMMENTARY: See this link for understanding of the spiritual meaning of this miracle.

Mark 6:41: And He took the five loaves and the two fish, and looking up toward heaven, He blessed the food and broke the loaves and He kept giving them to the disciples to set before them; and He divided up the two fish among them all.

COMMENTARY: See this link for understanding of the spiritual meaning of this miracle.

Luke 9:16: Then He took the five loaves and the two fish, and looking up to heaven, He blessed them, and broke them, and kept giving them to the disciples to set before the people.

COMMENTARY: See this link for understanding of the spiritual meaning of this miracle.