We like Mimi's Cafe on Harbor, Yamabuki in the Paradise Pier Hotel, and almost everything at the Block.
To get to the Block take the 5 south from
Disneyland to City Drive (about 2 exits, I believe) get off and make a right. It will be on your right hand side.
My faves at the block:
Johnny Rockets - Great 50's Diner, Fun and good onion rings.
Left at Albequerque - Yummy food. Love the tequila chicken and the Black & Blue Steak Sandwich.
Fast ones:
Quiznos: Fast sub place with good toasted subs.
Jodie Maronies - Yummy Sausage Place
Other yummy
Knott's Chicken Dinner restaurant. Take the 5 north from Disneyland to beach Blvd. Make a left. It will be on the right. Awesome fried chicken (I love the broiled chicken with garlic lemon butter and red potatoes).
Fast near Knott's
Baja Fresh - Great California style healthy Mexican food. Fresh food, just like the name.
Also near KNott's
Claim Jumper on the right of beach Blvd, next to the coke store.
Spaghetti Station is good and a great value too.
My top choice.
Whitewater Snacks in the Grand Californian Hotel. They have this grilled chicken sandwich with fresh California Chiles, Homemade Guacamole, and a toasted bun. Sooo GOOD! Comes with fries and the price is right.
Hope this gives you some ideas
~Tina