An english dish culminating the flavours of boiled rice or baked mashed potato or paste, and afterwards filled with vegetables or meat.
For example;
I bet Tristans' having cassarole for dinner tonight
or
Cassarole is Tristans' staple diet
I bet Tristans' having cassarole for dinner tonight
or
Cassarole is Tristans' staple diet
by Bill Gates April 10, 2004

Cheese plus other ingredients. Without cheese there is no casserole. It become's a pile of poop that is referred to as a pooparole.
by The Man is here. October 05, 2016

Cheese with other ingredients. A cassarole with out cheese is a pooparole, referring to what it taste like.
by The Man is here. October 05, 2016
