I just found a new snack:
1 Avocado
1/2 cup of milk
3 teaspoons of sugar or honey (or to taste)
Pop all into a blender and blend until smooth
You can reduce the sweetener.
This is full of healthy fats, vitamins and minerals and antioxidants.
For my 9 month old I use a little less milk to make it a thicker consistency for spoonfeeding. For my 3 year old I add a little morre milk to make it a smoothie, served in a straw cup. Both absolutely love it. It's similar to Indonesian avocado juice, which i love, but with real milk instead of sweetened condensed milk.
You can also experiment with healthier sweeteners (real maple syrup, agave juice or the like).