Cat on table

My one year old cat likes to jump on the kitchen table and eat my food, my fiances food and our sons baby food. We've told her no and shooed her off the table several times. We've also used spray bottles with water in them. She has her own climbing post. Nothing seems to be working. Has anyone else had this issue with your cat? How did you get the cat to stop jumping on the table? My fiance is at his wits end with her and I'm getting there myself. He wants to rehome her but i don't want to give up up on her yet. Any advice is appreciated thanks.