We had a cat who would wait for you to look away then would pinch peas or pak choi from our plates. He didn't like sausages, but was rather partial to chicken. But he definitely loved peas and pak choi.
Looking after my friends dog, a Patterdale Terror, one day, she wanted a baby tomato. I'd brought them along to chomp on. She was given another after eating the first. That one seemed to last for quite some time, haha, until I realised the little minx had been helping herself to more from my bag!
My own dog at the time, a Staffy, was partial to Tunnocks Tea Cakes, too. He managed to get the box open and ate 4 of them with the wrappers on. Fortunately, he was fine!
My first dog, a little mongrel, absolutely refused dog food but wolfed down cat food. She knew the difference. She'd eat the chicken but leave the bones, and loved to lick the butter off the wrapper when mum opened a new pack. And she was very adept at cleaning her bowl of food and leaving the pill right in the middle of her, licked clean!
They all ate fruit, too.