Bowl

Bowls are containers that can hold certain foods.

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

Eating
A bowl containing food becomes an empty bowl when the food is eaten.

Turtles
When a turtle is killed by a lightning bolt, it drops 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.

 Fuel 

Bowls can be used as a fuel in furnaces, smelting 0.5 items per bowl $$, and 1 item per bowl $$.