--Research huge snacks, side orders, and apps.
When I stayed at POP, I only ordered a side of eggs and a fruit for breakfast. Portion of eggs was huge! Kept me full until lunch. People also like to go to Yak n' Yeti and order the side fried rice for a meal.
--Consider bringing your own food or ordering groceries.
I have never done this, but I know plenty of people who do. You can easily bring non-perishables with you like bread and PB&J, cereals and just purchase milk from the gift shop. Also have water delivered to you.
--Some Kid's entrees are huge.
If you can manage, I find sometimes the kid's entrees are big enough for me.
--Budget meals ahead of time.
My family loves sitting down after a long, hot day in the park to a sit down meal. We opt to choose TS restaurants with moderate prices and overall good value. I would suggest The Wave, Kona Cafe, and Coral Reef Restaurants as fitting those characteristics. Of course, price and value can only be judged by your budget and preferences. Also consider ordering only an entree and perhaps not the most expensive one. I know when my family does do the
DDP, we tend to go for the pricier items to compensate for the plan.