We went through this when Tilly was over two, but it was so hard going from a fabulous eater to a child that would ONLY eat baked beans and egg (she now eats neither). What the doctor told me once, was never make a big deal of it, and just let them eat what they want. If they dont' eat vegies for a while it doesn't matter. Maybe if he eats some fruit, and what about hot chips? Hot chips that are chunky from the fish shop, so at least he gets some substance. Maybe try a few days of what he wants. The food you listed are all ok, so maybe a few days of just that, just to stop the tantrums. Also is he hungry. I found my dd ate alot better after starving her (ok, this is not as evil as it sounds). She could have breaky and then instead of snacking, wait until lunch and give food before a drink.
Good luck and hope it improves.
Just another idea, if he likes rice, I always grate zuchinni in it, as it's almost invisible (with not much skin).
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