Some dogs like peanut butter. Others crave those dry little dog biscuits or pig ears.
For an afternoon snack, I popped open a pint of grape tomatoes. It was mere seconds before our big ole sweet dog wandered in the kitchen, hoping to get a bite. While it sounds crazy, she knew exactly what she's eyeing. She's a vegetable and fruit-eating dog. And she doesn't just eat tomatoes and cucumbers and zucchini, she BEGS for them (especially tomatoes).
See exhibit A (my apologies for turning the camera on its side halfway through filming):