Brief Answer:
Complementary feeding is a slow and gradual process

Detailed Answer:
Hello

Thanks for the query

I won't get worried if the weight gain is proper.Complementary feed(shifting from exclusive breast feed to home food) is a slow and gradual process.
Infant of this age are usually inclined towards a particular food item and the parents should try continuously for introduction of new and healthy food items.
The infant should be given balanced food with a good proportion of carbohydrate(in the form of pulses),protein(pulses,cheese and meat) and fat(butter/oil)with vegetables and fruits(for minerals and vitamins).
Introduce any food item one by one at some interval so that if baby is allergic or intolerant to any particular food item it could be noticed earliest.
Continue breast feed specially at night time.
So keep trying for introduction of new items and I hope he will start taking all these in next few weeks.
Avoid giving cow milk and egg white till one year of age as the babies of this age are allergic to this.

I hope this helps.
Please write back if you have any more queries.
Regards

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