I think the complete elimination of baby food is important. He knows if he doesnt eat it you will give him the bay food so where is the incentive to eat or the realization that there are negative consequences to not eating the food given to him. I would highlight to the mother that if you aren't consistently doing the same at home and in daycare then efforts are completely wasted. He is of an age where he will know how to manipulate either or both of you. She needs to not give baby food and not give the crackers and cereal. I would reinforce that the cereal is nutrient deficient for his age, although its rubbish for any child to be honest. Mum needs to be the parent here and take control of the situation, A dietician isn't needed in this case as it isn't really a food issue, just a parent under the thumb by a fussy eater issue which isn't really something a dietician can help with.