i just try to add olive oil to anything i can. coat beans with it, i make a balsamic vinaigrette for berries to coat, cook eggs (we have always done yolks too..in moderation..no history of allergies) in olive oil.
ditto on the coconut milk...they even make a coconut milk drink now....
for sure dairy.
we do peanut butter.
muffins with eggs and oil.
on an interesting note, my friend was worried about the lack of fats in her babes diet so she started giving him chocolate wafer cookies.

but she's cute.
p.s. mine also won't eat avocado (after i had accidentally fed her a rancid one) and i'm pretty bummed b/c it's such a great food. i just keep offering it though. last night she actually ate a piece but then almost threw up....heroically keeping it down at the last minute.