My 20 month old has recently refused to eat anything savoury. I've tried a variety of different sandwich fillings, crackers and cheese, toast with cheese spread, scrolls. he did have a bite out of a cheese muffin recently. I tend to give up and give him fruit and a yoghurt as I don't want him to have nothing! What should I do? Is it just a temporary thing? I'm worried he's not getting a varied diet.