It is important to keep in mind, the verses preceding the Lord's Prayer (Mtt 6:3-9):
But When you give to the needy, do not let your left hand know what your right hand is doing, so that your giving may be in secret. Then your Father, who sees what is done in secret, will reward you .. .....And when you pray, do not keep on babbling like pagans, for they think they will be heard because of their many words. Do not be like them, for your Father knows what you need before you ask him. “This, then, is how you should pray:...
< Note that Jesus first refers to almsgiving, which is meant to fulfil the physical requirement of the deprived. Also note that he gives the Lord's Prayer as a Model Prayer by saying:" Pray like this... ".
< We also need to keep in mind that the curse given to Adam was that he should sweat on the forehead for his bread ! And we see Jesus referring to the Manna which indeed was a physical food. He repeats the ' The Father knows what your need before you ask ' statement on another occassion while referring to physical food. He multiplies bread to feed the hungry audience . So, it is absolutely right to believe that Jesus meant physical food by saying ' daily bread' in the Lord's Prayer.
PS: St Mother Theresa was once accused of feeding the hungry to the extent of making them lazy.She calmly relied: "I feed a hungry fisherman so that he is able to stand up and hold the fishing rod." Hunger may look meaningful to someone on fasting ,not to someone on whom hunger is imposed !