Hello, Sonja!
How exciting! Your family's first trip to Walt Disney World!
Not only are you in for a magical vacation, you're in for a real culinary treat as well because you're on the Disney Dining Plan!
Guests on the Disney Dining Plan
may use a Table Service entitlement at a Quick-Service location, should you choose to do so.
In this link to Walt Disney World's 2012 Disney Dining Plan guide, you'll find this information at the bottom of page 5, on the right, under the red bar, in the section entitled "Some Great Tips!" While I recommend that you take the time to sit down and relax over a great Table-Service meal once a day, sometimes schedules just don't allow that. Thus, this flexibility is a great option.
Please send me any other questions you may have as you think of them! I'd love to help!