I wouldn't go to the RFC b/c I don't like the food.
Plenty of restaurants at disney would be fun for a toddler - any character meal, O'hanas, biergarten, etc.
That said, I would focus more on the time you are eating and setting reasonable expectations for your child than worrying about what restaurant will entertain them, you know? So we do breakfasts out or early dinners (post nap) b/c that is good timing for my kids. They are ready to eat, rested and more likely to behave. The entertainment is just a bonus!