Should we pray over food in a public setting such as restaurants?
We should always have a prayer in our hearts. As we read in Alma 34:27:
“Yea, and when you do not cry unto the Lord, let your hearts be full, drawn out in prayer unto him continually for your welfare, and also for the welfare of those who are around you.”
But whether to pray or not in a public restaurant is a personal decision. Some feel it the best course. Some do not. I wouldn’t presume to take a position on it.
The only advice I would give is that if one’s reason to not pray is the fear of man, but otherwise one feels he/she should, then to get over that fear and do as one feels is right.