Hi Denise!
With so many quick service restaurants available, no wonder you are overwhelmed! The benefit of using the quick service meal plan is you don't have to worry about making reservations - so you won't have to deal with any of that stress.
I'd like to recommend you visit the restaurants page on disneyworld.com. You'll notice there are filters on the left side of the page. If you scroll to the bottom of the filters and select "Dining Experience" and then "Quick Service," you'll be able to zero in on all the quick service options available to you. If you'd like to take it a step further, also click on one of the parks, such as "Magic Kingdom" and your search will be narrowed down even further to show you only the quick service locations at Magic Kingdom. You can repeat this process for each park.
As you can see, there are many possibilities and you really can't go wrong at any of them. However, I'd be happy to tell you a few of my family favorites.
Magic Kingdom: Pecos Bill, Pinocchio Village, Cosmic Ray's
Epcot: Electric Umbrella and almost any quick service location at any country (especially the Mexican Pavilion)!
Hollywood Studios: ABC Commissary, Toy Story Pizza Planet
Animal Kingdom: Flame Tree BBQ - and don't forget that you can also try the new Picnic in the Park option which I highly recommend due to the great reviews I've read.
And don't forget you are also welcome to try quick service locations at other resorts - you are not limited to the quick service location at your resort.
I hope this helps you get started with your dining...please let us know if we can help further. Diane :)