Hey lovely, there are some great recipes for dairy free cakes and meals over on the food intolerance board. We went dairy and soy free for four months recently (I had to also because I was breast feeding)....
If it's a protein intolerance it will take up to two weeks to see an improvement as this is the length of time it takes for the proteins to clear from the body, if it's lactose intolerance I think it should clear up a lot faster
Finger foods that I gave Dyllan, I especially liked the oatmeal cookies with sultanas in them, I used dairy free spread to make other biscuits (just substituted) and the chocky cake recipe is BRILLIANT and SO easy..yum yum, even my incredibly picky step daughter liked it!! Just be careful of your bread too, lots of them contain milk powder, I made my own with my bread maker
For morning tea, Dyllan always has fruit (still does), that's the rule in our house. Afternoon tea is more fun stuff (as long as the fruit gets eaten LOL)...You can get dairy free choc chips and make chock chip muffins cut up, or little museli bar type things with oats and dried fruits and chock chips etc....honestly go and have a look on the board there are great ideas (the pancakes are delish too xx)
Good luck sweetie, hope that helps a little
xxLizzie