Well cats do like high places so apart from shutting her out of the kitchen there's not a whole lot you can do!
However, you can try putting foil on top of the counters to discourage her (cats are supposed to dislike foil but Mosi loves it
), set up a booby trap that will cause a negative association with jumping on the tops or try spraying her with water when she jumps up. They may work or they may not, and even if you succeed in deterring her when you're around there's a good chance she'll be up there as soon as your back's turned! Unless of course it's her own idea not to go up there. Personally I think I'd just keep the work surfaces as clear as possible and definitely clear of food so that there's little of interest up there. She may then realise that there's nothing that interesting up there after all and stop going up there.
Mosi used to be a terror for going on kitchen worktops but he's got a bit bored with it now and doesn't jump up there much. He has, however, discovered that the top of the oven (the eye level grill) makes a great place for a nap!