The Disney web page and this web page have good dining search features. You can't really go too wrong at WDW. they are all pretty good eateries, not like some other amusement parks! What one person loves, another dislikes - so it's kind of impossible for anyone here to say which places you'll love. Some DISers have disliked some of my favorites. But there really aren't any BAD restaurants.
The first thing to decide is which parks you want to visit when. The Disney web page lists a monthly calendar with park hours- so start there. EMH means extra magic hours. Decide if you want to go to EMH or avoid them. Decide if you want to park hop or stay only on one park each day. If you had been many times, I'd suggest hopping. Since this is your first trip, it's probably not worth it for you to pay for park hopping.
If, by spring break - you mean Easter, that's going to be a busy week. If you mean a week in April, then the parks probably won't be as bad (except maybe the first week of April.) One hint to crowd levels is the MK hours for your week.
EMH means a park is open either an extra hour in the morning, or an extra three hours in the pm FOR PEOPLE WHO ARE STAYING on-Property ONLY. Yes, that means on certain days, the Magic Kingdom is open from 8am until 3am - if you go during a peak time - and the park will be fairly crowded from 8am until 3am!!!! (for people staying on property) Some folks decide there is no way they want to be in a park at midnight, others are eager to be there before 8am - or wish MK was open all night. Either way, walking from 9am-9pm every day for a week is rather long for most folks. I went with a marathon runner who couldn't keep up the pace!
So the EMH park will be more crowded than other parks on any given day. If you are avoiding the EMH then you should avoid that park all day. If you think you'd like to take advantage of the EMH, then you'll want to go to that park for the day (OR hop into that park for the extra hours only, but then your touring plan will get complicated quickly, and you lose 30 - 60 minutes of park time per hop)
Always the MOST crowded time of day is between 11am and 8pm. The crowds start to thin more after the parade is over, and after the fireworks. If the park isn't crowded, then you may encounter 15minute waits to get on rides and fairly clear pathways between attractions. If the park is crowded, waits will be over an hour, with people EVERYWHERE between rides, making it hard to get from place to place. The buses will have waits, the QS restaurants will have llines, etc. Disney does a truly impressive job moving folks, but there's only so much they can do!
If the parks are crowded, the best thing is to plan to either be in the park early, or to stay late. You know your family best - are they morning folks or late night folks? This is not going to be a relaxing 'laying-down all day' vacation, it's going to be an active one. (start getting in shape now by going for walks every day, unless you already walk or jog every day. At WDW, you'll be on your feet ALL DAY!) It's going to take a full day to see most of each park - or longer. You won't see everything in a week - but you may well run out of steam!
Realize that it's going to take most families about 2-3hours from waking until being in the park for the first ride: an hour in the room, 45minutes to eat breakfast (if QS at your resort), and another 45 minutes in transporting your family tothe parks (less from WL to MK by bus: at least this long by boat). Even getting to a park to eat is going to probably take an hour and a half or longer.
You can buy a WDW guide, and some are very good, but you can also find great info online. This website is a very good one, but there are others. The Disney website itself has tons of good info.
So once you pick a touring plan, THEN start thinking about places you'd like to eat. Anything that sounds interesting to YOU. I don't like more than one sit down meal per day. Otherwise you spend too much time just trying to get from one restaurant to another. Remember, you have to allow time to GET to the restaurant. So if it's 2pm, and you've got a 3pm ADR, then you don't have time to wait in that 45minute line to get on Space Mountain, ride the ride, AND get to the other side of the park by 3pm! On the other hand, WDW has some fun eateries, so it's nice to try a few of the nicer places and not eat all quick service meals ALL WEEK. Disney isn't all french fries, chicken fingers, and burgers any more - but still you aren't going to find a lot of veggies on the quick service menus, unless you count salad. How much salad can you eat in a week?
I also personally think one or two character meals the entire trip is plenty. At least one is fun, but they aren't quiet or relaxing meals, any of them. I dunno, maybe you plan on taking a nap every afternoon...we don't.
Once you pick a sit down choice for each day, you can wait to pick your other meals until you are actually there and hungry and see a place that interests you. Sometimes you'll want to eat at your home resort, sometimes you'll want to eat in the park, sometimes you may want to visit another resort. The World Showcase is good if you want to try more exotic choices. There are LOTS of choices if you prefer traditional American food.
So hopefully, that's enough to get you going without giving you TOO much. Don't sweat your choices - have fun.
