Is the food expensive in Californian six flags

Yes ....very expensive

Maybe, that depends on how you see it. If you eat before got inside the park is worth the try, but if you leave the park to eat outside then the tune you spend and gas you might break even, it take you too long and you loose time. Save money for food or bring somet snacks on a backpack.

Yes it is. You can leave tbe park and get you hand stamped to re enter. There are plenty of places to eat outside the park

Yes

Yes It can be

Yes i went last weekend and ended uo getting some hot wings , they were like 7 pieces, with some potato chips, no drink included, it was like 17 Dollars

Yes it can be if you are a large group and sometimes the quality is not as good.