It depends on the style of the cartoon. Maybe she has a content expression, showing satisfaction. Or she could have a curious expression, wondering about the ingredients of the food.
Maybe she's having a delicious ice cream cone. It's colorful and fun to show in cartoons.
It could be a cute scene with the girl enjoying her meal happily.
The girl's expression when eating snacks in the cartoon could be one of surprise if the snack tastes unexpectedly good. Maybe she also has a relaxed and carefree look, simply enjoying the moment.
Maybe she's hungry and canned food is the only thing available to her at the moment.
The cartoon dog might be eating a juicy bone or some dog treats.
It could be a piece of fish or a bowl of cat food.
The cartoon baby might be eating something like a slice of pizza or a bowl of fruit salad.
He could be eating a hamburger. They're popular and easy to depict in cartoons. Or maybe it's some sushi for a more exotic option.
It could be pizza. You know, kids love pizza!
There are many types. Maybe a cute animation with a child happily enjoying a pizza. Or a funny one where a kid is making a mess while eating ice cream.