There's no better way to prepare for Sunday Mass than to take a look at the readings beforehand. Then, after looking at the Scriptures, ask yourself the questions a preacher might ask in preparing a homily:
Which particular words or phrases in the Scriptures hold my attention?
What in the past week's news comes to mind as I read these Scriptures?
Who invites the hungry, today, to come and eat and drink at no cost?
What threatens to separate us from the love of Christ today?
How do I understand miracles?
How do my listeners understand miracles?
What might be a contemporary version of "5 loaves and 2 fish?"
What do I suppose the disciples did with the 12 wicker baskets of left-overs?
What do I do with my left-overs?
Jesus feeds his people: for what are his people hungry today?