Bowl

Bowls are containers that are used to hold certain foods.

Fishing
Bowls can be obtained as a "junk" item while fishing.

Eating
Foods contained within these bowls will turn into an empty bowl when eaten.

Turtles
Turtles killed with a lightning bolt summoned from a trident with the Channeling enchantment will drop 0-1 bowls.

Mooshrooms
a bowl on a mooshroom turns the bowl into mushroom stew. The stew can then be consumed immediately and the process repeated, making this an excellent way to quickly restore depleted hunger and saturation with almost no cost or effort. Inventory space is saved because there is no need to store red and brown mushrooms, and the mooshroom isn't turned into a cow as it would be if it were sheared for its mushrooms.

Fuel
Bowls can be used as a fuel in furnaces, smelting 0.5 items per bowl in Java Edition, and 1 item per bowl in Bedrock Edition.