Hi Clara!
When you enter any of the qualified Quick Service restaurants, you're pretty much entitled to whatever you want on the menu. For example, for breakfast, you get 1 entree, juice, and beverage. For lunch/dinner, you get an entree, dessert, and a beverage. Anything that qualifies as a juice, entree, beverage, or dessert for the respective meal, you can choose it! Plus, the good thing is Disney understands many of their guests will be using one of the Dining Plans, so they setup their menus so guests can easily choose their food options, without making it too complicated.
Most quick services offer a variety of entrees so you have options to choose from..
Good Luck and Happy Eating! :-)