Most probably fictional. Although it could be inspired by real situations where people feel like there's an endless supply of pasta, such as a big family gathering where the pasta just seems to keep coming. But a literal never - ending pasta bowl goes against the physical constraints we know. It's more of a creative and imaginative story, perhaps used to teach lessons about generosity or gluttony in a fun way.
I would say it's fictional. In reality, there are limits to the amount of pasta that can fit in a bowl. However, it could be based on real - life experiences of large amounts of pasta being served, like at an all - you - can - eat pasta buffet. But the idea of it truly never ending is more of a fictional concept for the sake of an interesting story.
It's most likely a fictional story. I mean, a bowl that never runs out of pasta defies the laws of nature and common sense in our world. There's no such thing as an actual never - ending supply of food in a normal bowl.