In the parks there are a few options. In DL, they have some pastas at the Plaza Inn at the end of Main St. In DCA, there is the Boardwalk Pizza and Pasta, it's okay, nothing special. There is also the Wine Country Trattoria which is good, they have a lot of options and if you can eat outside it looks down Route 66 in. Cars Land. In DTD there is Naples right at the beginning outside the Security. Gates of the parks, but they are really popular race weekend so I'd make a reservation if you go there.
Outside the parks on Katella a little farther than Stovall's is Marri's. I'm just not sure how much further it is from Stovall's. They have a ton of pastas and they deliver to the rooms if you don't want to walk/drive there. Coco's has a pasta dish and they are right next to the hotel; they're kinda like a Denny's. It's been a while since I've been there and I think it was just a meat sauce. There are also some restaurants in the Garden Walk which is on the other side of the parks, but that might be too long of a walk if you're back at the room already.