Hi, Dora! My family and I spend a lot of time when we go to Walt Disney World eating, and there are so many wonderful counter service locations that we enjoy! It all depends on what kind of food your family likes to eat, but we are a pretty diverse bunch, so we try everything!
At the Magic Kingdom, we like the Tomorrowland Terrace Noodle Station - although it's only open seasonally, so we can't enjoy it on every trip. You'll find not only Asian inspired dishes, but chicken nuggets and Caesar salad as well. Another great Magic Kingdom location is Cosmic Ray's. That's a family favorite, because everyone can get what they want at the various counters here. You can get everything here from burgers and nuggets to barbecue and rotisserie chicken. You will also find salad and a vegetarian wrap.
Hands down, Flame Tree Barbecue at Animal Kingdom is my husband's favorite counter service anywhere at Walt Disney World. He is drooling over my shoulder as I type over the St. Louis style ribs they serve there!
Disney's Hollywood Studios has a good hot Italian deli sandwich at Catalina Eddie's counter service location, and for burger fans, Rosie's All American Cafe will be a must do.
To list for you all of my favorite EPCOT counter service locations, we'd need to spend some time together! Even my kids love the Mediterranean flavors of the Tangierine Cafe, and the Yakitori House has some amazing Japanese flavors. My oldest daughter can't leave the park without a stop for fish and chips at the Yorkshire County Fish Shop.
The list of wonderful Walt Disney World Dining locations is a long one, but I hope I've given you some ideas that will work for your family! Have a wonderful time feasting your way around Walt Disney World!