Thomas used to like the Cow & Gate fruity cereals, although they say 7+ on the packet if Stephen can handle Weetabix he would have no problem with them. They have quite a few different flavours but I always added fruit purees/mashed fruit to them to vary the tastes and textures and its a great way of getting extra goodness in.
When you are ready to introduce finger foods then strips of buttered toast or crumpets are good too.
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