For a quickie breakfast in the room for my boys, I like to buy Entenmans (sp?) doughnuts and things in the resort gift shop. Since the prices are already on the boxes (just like at home), WDW doesn't hike up the prices for these products. I also buy milk, and usually bring some fruit. This keeps them happy till we hit the parks.
We usually either have a big lunch or a big supper, and our other meal is counter service.