There are so many blogs and books out there to guide you on your trip to Disneyland, I won't try to provide much advice. I will recommend the book that we have used for both Disney World and Disneyland: The Unofficial Guide to Disneyland. It gives a breakdown of everything in each park from character dining to rides to where to stand to get the best view of the parades. The most useful things for us have been the suggested itineraries in the back of the book. There are several for each park and each plan is geared to who you are traveling with (kids in strollers, teenagers, two adults only). The Itineraries provide a plan of attack, letting you know everything from what order to tackle the park to what ride to Fast Pass to when to grab lunch, without pushing everyone to total exhaustion. My only other advice is to get an early start. We were there in the middle of the week in February and it was still very crowded.
We had a good lunch at Rancho del Zocalo in Frontierland. Serving Mexican food, the food was pretty tasty and the portions are huge. The kids had a choice of a bean and cheese burrito or a chicken taco and fish tacos were on the menu for the non-meat eater in our group.
On our way out of the park, we ate at La Brea Bakery in Downtown Disney. Delicious sandwiches, salads and artisan pizzas are all excellent choices after a long day of walking around. We watched the fireworks show from the parking lot before heading home. Ava was asleep before we hit the highway with Jack following quickly after and as any parent knows, that is truly the sign of a great day.