"fill-AYs" was a ridiculously pretentious

As long as we're discussing restaurant pronunciations, pretentious and otherwise, may I ask for another poll: How do you-all pronounce FLAN (the fruit/custard tart)? We've always pronounced it with the same *a as in *cat. A server in a restaurant once asked if we'd like the *flahn, prompting my husband to ask if the flahn was baked in a flahn pahn. Anyway, I'm very curious as to which is more common, and whether we're saying it wrong. (I know I could LIU, but I'm more interested in how it's said in different places.) Thanks!