我的一个朋友教给我的做菜泥和果泥的方法:
start with carrots and zucchini
and then if you see that he is doing  fine, add some green beans, peas and potatoes
the most important is  try one vegetable at the time for few days
carrots for 2 days , beans  for 2 days...
so that you see if he diggest them nicely, if he like  it and if he does not have allergies
here is what you can do
carrots  and zucchini ( zucchini add water to the puree, so that you don't have  to add real water , much easier and better for the baby)
and for  dessert, apple sauce
so try one vegetable , add zucchini in every  single time
steam cooked everything, really important
don't add any  salt or butter
for fruits it is the same thing, one fruit at the  time, but do not need add zucchini,
it will make you puree , like apple, pear, mango....
do  that for like 2 months or so
after that you can start mixing the  vegetables and same with fruit
and you can start to add meat
for  the meat, same thing steam it! 
you know you put vegetables and meat,  steam cook and blend it!