If you will like to introduce Bun to your child, try this. The red bean paste is not sweet at all and most importantly, it is multi grain.
I have been using this seasoning since Yvette was 14 mths. Bragg Liquid Aminos All Natural (All purpose seasoning) for her lunch and our dishes for dinner. This is a Soy Protein contains no preservatives and Gluten Free.
Both can be found in NTUC.