Hi, Vanessa!
With the Quick Service Plan, each guest gets 2 Quick Service Credits plus 1 Snack Credit for each night of your stay (plus 1 refillable mug per guest age 3 and over). You can use those credits whenever you want from the minute you check-in through the end of your vacation.
For example, you may use a snack credit for a bagel in lieu of a full breakfast, skip lunch, and have an early dinner. In this case, you have only used 1 snack credit and 1 quick service credit. The next day, you might want breakfast, lunch, and dinner, using 3 quick service credits that day.
The great thing about the Disney Dining Plan is the flexibility! Use the credits however you wish. If you decide to do a Table Service meal, that is fine, but you will need to pay out of pocket for that meal.
After each meal, your credit balance will be printed at the bottom of your receipt so it will be easy to know at all times how many credits you have remaining. Do not leave any, as these credits will not carry over until your next vacation.
For detailed information on the Quick Service Dining Plan, click
HERE. I hope this helps! Enjoy all the great dining in Walt Disney World.