Why that kitchen bowl is such a hard test
Cat food is not just available to your dog, it is unusually rewarding to steal. It tends to be higher in fat and protein than dog food, it smells strong in a warm kitchen, and because it sits at floor level it falls exactly in the path of a nose that explores the room at bowl height. A dog who helps herself once learns a powerful lesson in a single visit: wandering into the kitchen when nobody is watching pays well. That is why scolding after the bowl is already empty rarely works.
Make the kitchen work in your favour first
Before any training session, change the setup so your dog cannot practise the wrong behaviour between lessons. Feed the cat at predictable times rather than leaving food down all day, and place the bowl behind a baby gate, in a room the cat can slip into through a cat flap, or on the far side of a barrier your cat can jump and your dog cannot. Pick up the bowl as soon as the cat walks away. A dog who has not raided the bowl for several weeks is a dog whose leave training actually has room to take hold.
Build a leave cue away from the real bowl
Teach the skill where failure costs nothing, in a hallway or garden with a dull treat in your closed fist. Let her sniff and paw, say nothing, and the moment she pulls her nose away, mark it and pay her with a better treat from your other hand. Once she is backing away from the closed fist reliably, add your leave cue just before she turns, then repeat the game with the treat on the floor under your foot. Only when she can ignore a treat she can see but not reach, and look to you instead, is she ready to hear that same cue at a distance from the cat's feeding area.
Bring the training into the kitchen slowly
Now stage short kitchen sessions with your dog on a lead and the cat bowl empty or covered, well across the room from where she is asked to settle on a mat. Reward her for lying on the mat and glancing away from the bowl, then end the session while she is still succeeding. Over days, move the mat a little closer, add a small amount of cat food to the bowl, and let the cat be present for brief, calm periods. If she lunges or fixates, you have moved too fast, so increase the distance again rather than correcting her harder.
What to do when she still makes a dive for it
Expect the occasional test, especially when a fresh bowl has just gone down and the smell is at its peak. Calmly interrupt with her name or the leave cue, guide her back to her mat with the lead, and reward the choice to come away, without turning the moment into a chase or a game. If food guarding appears around any bowl, hers included, stop the kitchen work and ask a qualified behaviour professional and your vet for help with that separate problem.
A kitchen rule the whole household can keep
The training holds when every person feeds the cat the same way, picks the bowl up at the same point, and uses the same cue with the same meaning, rather than each family member improvising. Note who fed the cat, whether the bowl was lifted, and how your dog did on her mat, and keep that shared note in KinsLe using Care Teams so the next person on feeding duty picks up exactly where the last session left off.