If your little one is a darling girl then she will enjoy dressing up as a mom and taking on the mother role with her dolls and toy friends. Equip her with some plastic spoons and paper bowls and plates that can be handled a bit rough and take the punishment. She will love to feed them and of course change their diapers and give them a bath.
For this you can pretend to change the diaper using nothing more than your imagination and a dry cloth. Pretend to take off the imaginary diaper and then let her "clean" the baby with the dry cloth. Then put on a new imaginary diaper and she's all set and ready for playtime. When it comes time to give the baby a bath, leave out the water if her doll is not able to be submerged. A dry dishpan or baby tub works well and let her imagination take the place of the water. Be on the lookout when your child decides to put her "babies" down for a nap. She may demand that you are quiet so that her babies are not woken up!
If your little one is a boy he will still love to take on the parent role. He may not get into the dressing and caring part of the role play, but he will enjoy showing his "little ones" how to play with his toys and showing them several of his books.
Parent role play is only one option. If you've got a long white button down shirt that your child can wear as a doctor's coat, you're well on your way to role playing doctor or even better, veterinarian. Let your child check out all of her stuffed animals for health and wellness by counting their eyes, ears and noses along with making sure that they can walk and sit up.
Use your imagination to think up more things for your child to check depending on the capabilities of the stuffed animals that are pretend patients. For example, if your child has a stuffed dog that make a barking noise, ask your child to ask the dog questions and let the dog bark for the answers. If your child has another toy that can walk on its own, let your child teach the toy to walk and then reward its accomplishments.