How do I add healthy fats to my daughter's diet? My daughter is going through a growth spurt right now and having trouble sleeping through the night.  I asked this question on ParentingSE and based on what I wrote, the advice I have gotten is that a little more fat in her diet might help.

Can you suggest some ways to add healthy fats to the cooking I already do so my daughter can get what she needs?
Smoothies would be a great breakfast, snack, or dessert! You can put in a lot of healthy things that would add different nutrients. The nice thing about smoothies is that the other ingredients can mask certain tastes, too. 

For adding fats, try adding coconut oil or coconut milk, peanut butter or other nut butter, avocado, or even some other oil that you think is healthy.