Well... Here are a few ideas, close to the WL.
First off, the BEST place IMO would be Chef Mickey's located at the CR. It's a character dinner with Mickey, MInnie, Goofy, Chip, Dale and usually Donald as well. It's buffet, and the food is very good, IMO for a buffet. My kids love it!!
Another good place is Ohana at the Poly. This restaurant serves mean fired grilled on skewers right at your table, all food is served family style, and it's great. There are coconut races and hulahoop contests for children.
Also at the Poly is Kona Cafe. A hidden gem, the food is WONDERFUL and rather reasonable using WDW standards. Kona has the best desserts on property, IMO, so if you're a dessert person this would be a good stop.
Don't count out Whispering Canyon Cafe at WL out. It's a "hooten, hollerin'" good time!! They do stick pony races once an hour around the restaurant, and the servers do have some funny anctics. Since you're at WL, it might be a good choice.
The GF cafe is a great place, very quiet, and reasonable as well. It just re-opened for dinner, and would be a great opportunity to see the GF as well.
At the GF is also Cinderella's Gala Feast. It stars Cinderella, Prince Charming, Suzy, Perla and Fairy Godmother. IT is a charater dinner, just like Chef Mickeys, but different restaurant, food and characters. If you have a princess crazy member of your family, this might be a good stop.
Now, that I've given you all the dining opportunities around the WL, I'll tell you that if you don't already have reservations for Chef Mickey's, I'd go there. It's the best way to start off a trip, we always have our first dinner at WDW there!!!!