Quite honestly, the dinner type restaurants in DL are better quality food & as reasonably priced as any chain restaurant outside the gates.
If you factor in time & energy it's a waste to leave DL when you can have a great meal at - Carnation Cafe, Cafe New Orleans, Cove Bar, RiverBelle Terrace, El Zocalo (sp?) even Taste Pilots, Hungry Bear are as good as Red Robins or CheeseCake Factory - and MILES better than Cailornia Pizza Kitchen.
I respectfully disagree. The prices at all Disney property restaurants are higher by a few dollars per entree than most of the chain restaurants. I have eaten at Hungry Bear twice and that is twice to many. I do like Taste Pilots Grill though. We like to go to Red Rocket's Pizza Port for the salads and pasta. Cafe Orleans is good but you can get a similar meal at Mimi's Cafe for a lot less money.
Red Robin is so much better that you can't even quantify it. Bottomless fries, incredible burger toppings, and even bottomless root-beer floats are just some of the things that set Red Robin apart from a lot of places, Disney included.
Disney has nothing that even compares to CheeseCake Factory with their extensive menu and wide array of Cheesecake deserts.
You must have had a bad experience at California Pizza Kitchen because we have eaten there several times and have enjoyed it each time. They have a guarantee that if you try one of their pizzas and don't like it, you can ask them to bring you a different one. They also have excellent salads.
A rather unique restaurant to Southern California that is small chain is BJ's Brewhouse. They have a compelling menu that includes outstanding Chicago-Style pizza and a unique desert they call the Pizzookie. It is a cookie baked in a small pizza pan and topped with ice cream. You choose the cookie and ice cream. It comes out fresh baked and is large enough to share.
The truth is that Southern California has some excellent local restaurants. Some are national chains while others are local/regional and like most areas we do have some very good non-chain places as well.
The Disney food quality is good and even better at some of their sit-down restaurants, but it isn't the best value. Now, if you want to maximize your time in the parks, I would suggest staying in park. But if you are looking for a temporary departure and want to try something different, stepping away can provide you good food at more reasonable prices.