You should be careful with such spice as nutmeg. Different kinds of desserts can contain nutmeg, which has some slight hallucinogenic effects. If your dog eats a piece of pie with nutmeg its central nervous system can be damaged. Also sometimes dogs have seizures after eating this spice. You can give some desserts to your dog such as pumpkin pie or sweet potato but first make it clear there is no nutmeg inside them.