@Leanne no as they are soy she can’t have that either 😫
Could you change the way she eats them? Freeze some of her purees into little ice pops or if you have seen the frozen yoghurt drop videos maybe you could freeze a load of puree 'buttons' for her? What about dairy free yoghurts made from coconut or oats?
I suggest to add herbs. For example steam in water with caraway, parsley ….
Can she have dairy free yogurt? Like alpro? Could mix some puréed fruit into that? Maybe make some smoothies with her milk and fruit?