Before meals, one of blessings in “Book of Blessings” is:
“1065 When the community has gathered, all make the sign of the cross and the one presiding says the following (a priest or a deacon makes the sign of the cross).
Bless + us, O Lord, and these your gifts
which we are about to receive from your goodness.
Through Christ our Lord.
R. Amen. ”
There is a blessing of the food and a blessing of the people here.
The General Introduction to the Book of Blessings has:
“18. … d. An acolyte or a reader who by formal institution has this special office in the Church is rightly preferred over another layperson as the minister designated at the discretion of the local Ordinary to impart certain blessings.
Other laymen and laywomen, in virtue of the universal priesthood, a dignity they possess because of their baptism and confirmation, may celebrate certain blessings, as indicated in the respective orders of blessings, by use of the rites and formularies designated for a lay minister. Such laypersons exercise this ministry in virtue of their office (for example, parents on behalf of their children) or by reason of some special liturgical ministry or in fulfillment of a particular charge in the Church, as is the case in many places with religious or catechists appointed by the decision of the local Ordinary, [footnote 28: See Vatican Council II, Constitution on the Liturgy Sacrosanctum Concilium, art. 79] after ascertaining their proper pastoral formation and prudence in the apostolate.
But whenever a priest or a deacon is present, the office of presiding should be left to him.”
Another example, Chapter 24, Order for the Blessing of Tools or Other Equipment for Work. It has “921 The present order may be used by a priest or deacon. It may also be used by a layperson, who follows the rites and prayers designated for a lay minister.”
[Excerpts from the English translation of Book of Blessings, edition approved for the United States of America, © 1987, International Commission on English in the Liturgy Corporation. All rights reserved.]