Check allears.net for great dining information, including restaurant locations, type of dining plan credits they require, and menus. The info right here on the DISboards is good, too.
IF the dining plans offered internationally work the same way as the plans offered to US residents, the following information might be helpful.
When you stay at a Disney resort, you can opt to purchase any of the Dining Plans: Quick Service (2 quick service meal credits and 2 snack credits per person, per day), regular
Disney Dining Plan (1 quick service credit, 1 table service credit, and 2 snack credits per person, per day), or the Deluxe Dining Plan (which is good for 2 meals of any type and 2 snacks per day... may also have a few other benefits that the DDP doesn't offer). The dining plan credits are good at all Disney food service locations, be they at resorts (hotels) or theme parks, restaurants or food court/take outs, and many of the restaurants at Disney Springs also take the credits. You are not limited to eating only at your resort; as long as you have the appropriate credit-type (quick service or table service) for the location, you can eat there. At Disney, the value resorts only have food court-style eating areas, and these all require quick service credits. The moderate and deluxe resorts all have one or more table service restaurants, and most (if not all) also have a quick service location (not sure about the Grand Floridian). You use quick service credits at quick service locations, table service credits at full service, sit-down restaurants. MOST of Disney's buffets are character meals, and require one (or more) table service credits per meal; I know that Boma at AKL and Biergarten in Epcot are buffets that are not character meals. It's pretty easy to check the online menus and decide if you'll spend more money by paying out of pocket for food, or if the dining plan is a more affordable option for your family.
Sometimes, Disney runs a special offer they call "Free Dining," which is only valid for specific time periods/dates. The type of meal plan offered with free dining is linked to the level of your resort; right now, the offer that was most recently available to US residents offered a free Quick Service Dining Plan if you were staying at a value or moderate resort. The Disney Dining Plan was offered for free if you stay at a deluxe resort. Both meal plans also give you a refillable mug per person. If you are staying at a value or moderate but want the DDP, you can pay to upgrade your free QSDP to a DDP. The "free dining" offer is tied to a couple of requirements; the most recent offer requires that you pay rack rate for your room, purchase a minimum of a 3 day park hopper pass, and everyone in the room MUST be on the same dining plan. This is where it gets interesting, because sometimes this is a good deal and sometimes it's not. People spend hours looking at Disney menus, trying to decide what it's going to cost them to eat the meals they want, then compare this cost (plus the cost of whatever discounted tickets they can buy and the cost of whatever hotel discount they can use) with the cost of paying rack rate/park hopper tickets and getting the "free" dining. On our most recent trip, I had a "free" dining plan offer through POP Century. Because we wanted 6 day park tickets and upgraded the QSDP to the DDP, the total cost was going to be $2800 (for 2 adults). Looking around, I found a deal through a
travel agent where I got 6 nights at Animal Kingdom Lodge with a 6 day base ticket (and one free water park admission) for $1900. For the way we eat (the dining plan would have meant a lot of food waste), we decided we'd rather stay at the deluxe resort and pay for our meals. I kept track of our total food expenditures and found we paid less staying at AKL through the
travel agency offer and paying for our meals than if we'd stayed at POP on the "free dining" offer.