Hi Laken!
Both Cinderella's Royal Table and Be Our Guest are absolutely fantastic! It's a really tough choice to make, and it may come down to which one is available to reserve. If that happens, I can guarantee you that you'll be happy with whichever restaurant you get.
If you have to choose one, I'd go with Be Our Guest because I love Beauty & The Beast. The main dining room looks EXACTLY like you're in the movie! I was absolutely floored when I saw it! You also get to meet Beast without crazy wait times. Oh yeah....the food is great too! Please see the prices for Be Our Guest
here. Click on the "View Menu" option on the right hand side of the page. You will be able to choose breakfast, lunch or dinner menus.
Now, here's a suggestion so that you could dine at both castles: Reserve breakfast or lunch at Be Our Guest, dinner at Cinderella's Royal Table. The cost of breakfast or lunch is comparable to those meals at any restaurant at Walt Disney World Resort.
I hope this helps. Thanks for visiting the Moms Panel. Have a magical day!