Why is the Mass both a sacrifice and a sacred meal?

Mission Lab

The Mass is both a sacrifice and a sacred meal because it is an unbloody representation of the sacrifice of the Cross; in application of its sacred power, the Lord is immolated in the Sacrifice of the Mass. When the words of consecration are said, this immolation (sacrifice of Christ) becomes present in a sacramental form under the appearances of bread and wine and becomes the spiritual food of the faithful.