In California, the two parks, three hotels, and Downtown Disney combined are referred to as the
Disneyland Resort (DLR). The two parks are Disneyland (DL) and Disney California Adventure (DCA). There is no Magic Kingdom in California. When in January? DCA's Lunar New Year Festival will have food carts.
Everyone has their own preference for restaurants. Below is the order in which I would choose dining in each category. Note that I am in the parks often so I am probably more picky than others.
Disneyland
ADR
Blue Bayou
Cafe Orleans (Fantasmic dining package available)
Carnation Cafe
River Belle Terrace (Fantasmic dining package available)
Quick Serve - cafeteria style
Tiana's Palace
Plaza Inn
Rancho del Zocalo (Fantasmic dining package available)
Alien Pizza Planet
Quick Serve - order with cashier and go to window to pick up food
Bengal Barbecue
Hungry Bear Barbecue Jamboree
Jolly Holiday
Red Rose Tavern
Most would strongly recommend trying to reserve dining at Blue Bayou. If you do, it is important to ask to sit near the waterfront. If you are interested in watching Fantasmic, most would recommend a dining package. The three dining packages are at Cafe Orleans, River Belle Terrace and Rancho del Zocalo
DCA
ADR
Carthay Circle Restaurant
Lamplight Lounge
Wine Country Trattoria (World of Color dining package available)
Quick Serve - order with cashier and go to window to pick up food
San Fransokyo has a variety of good options - Lucky Fortune Cookery, Cocina Cucamonga and Aunt Cass Cafe
Paradise Garden Grill & Boardwalk Pizza & Pasta
Flos V8
Award Wieners
Pym Test Kitchen
Cozy Cone
Corn Dog Castle
Smokejumpers
Many recommend the World of Color dessert package. The package is not necessary in order to view WOC, but many enjoy having a chair to sit in at the end of a long day. It is a separate reservation process.