Can dogs eat squash? Squash is a vegetable and is not recommended for dogs. Dogs can eat vegetables if they are cooked, but not raw. PetsFoodItems is a website that provides information on what your pets can and cannot eat. This website provides information on what your pets can and cannot eat. It provides a list of items that are safe for your pet to consume as well as list of items that are not. The site also has a list of items that you should avoid giving to your pet, such as onions, grapes, and garlic.