Go outside the park to eat if you can. There's multiple malls and strip malls with much better food, both restaurant and quick service/fast casual (Zanku, Presto Pasta, PizzaRev, Red Robin, Islands, Pei Wei, Pick Up Stix, Chili's... just to name a few).
If time is an issue, the best of the worst park options could be the garlic fries/chicken strips combo (but only if you like VERY garlicly, greasy fries... but I do) just outside of Food Etc., or Food Etc. itself (although lines can get long for some counters). YOLOcoaster Bar is fine... not terrible, but not really great either. Haven't actually tried Chop Six near Viper, but when it first opened, I heard it was better than expected--though I totally guess no one expected much, so take that as you will. It's not original, but there is a Johnny Rockets counter service near Crazanity that has mobile ordering. Best quick snack in the park: roasted corn on the cob near Batman.