PC and 1 mod (Remove the Cart Button), game version 1.123.85.1020
Since the last update when sims visit community lots and start grilling autonomously, they never stop to eat their food, they just keep on grilling new meals.
It's manageable enough to just cancel the action and select a new one, but it's a weird behavior especially when they get a hungry moodlet and there's plenty of food around and they just keep grilling.
I've only noticed this with grills, not full kitchens.