Wah 3years old den start outside food tats very good . R u a working mum?
I only started my boy on outside food at 3yo. Adult food from our table (home cooked) at 2yo cos we seldom use seasoning at home anyway.
If you are travelling, organic bottled food has large varieties if you head to Tanglin Mall's Brown Rice Paradise or Cold Storage. You should get some to try out before going on the trip to know which ones your kiddo likes
I think you can order plain porridge to mix with the bottled food (this is what we did when we brought my boy to Pangkor Island when he was 10mths old). Then we brought organic cereal (oats and brown rice) to mix with his milk for breakfast.