Thank you for posting your question.
The diet of a 14 month old child should comprise of everything that is included in a basic family meal, in short the baby should ideally eat whatever other family members are eating, as long as its all homemade.
He may be given all vegetables, fruits. You may boil and mash the vegetables and then add some salt to make it palatable.
You may add rice, pulses. You may slowly introduce strong
proteins like egg white or chicken/meat.
The consistency should initially be kept curd like and gradually thickened.
Alone breast feeding would not be sufficient for the growing needs of your child at this age thus complementing it with other foods is very necessary at this point.
You need to use the method of trial and error to know and understand what kind of foods suit your baby. Any more delay in establishing proper complementary diet would have adverse consequences on his nutritional status.
If you need any more information, do write back.