ahh you've made me doubt now. I like the idea of paying upfront then i wont worry about money budget when im there but then again i dont want to be out of pocket and eating at the most expensive place so i get the most from my vouchers.
So you rekon you can easily eat a dinner (apart from inventions,auberge, cafe mickey) for 31E or less. Were staying 7 nights so will need eating recomendations for 4 of these nights
An adult can have a main course and a drink at Cafe Mickey for about 25 euros (the portions are generous).
There are quite a few better value options for dinner, off the top of my head -
Cafe Mickey as above
La Grange at Billy Bobs in the Village (all you can eat buffet)
Annettes Diner - they have a menu for less than 20 euros for a main and a dessert.
Rainforest Cafe again, main course and a drink (again generous portions as I recall) for around 25 euros
Plaza Gardens in the main park (may be open for dinner if you're there when the main park closes at 8pm or later).
Beaver Creek Tavern in the Sequoia Lodge hotel, here you can choose a full 3-course, or a 2-course, or just a main course, the main courses are under 20 euros.
If you're staying at the Santa Fe or Cheyenne, they have their own buffet dinner restaurants, again well under 31 euros per adult.
If you want a big lunch rather than a big dinner, you have more choice - Agrabah Cafe in the main park and Restaurant des Stars in the studios, both around 25 euros per adult, full buffet and soft drink. Walts and the Blue Lagoon do express lunch menus for around 20 euros per adult, includes one main course and a Cafe Gourmand (coffee or tea of your choice plus 3 mini-desserts). The Silver Spur steakhouse in the main park also has a set menu for less than 30 euros per person I believe.