What is cassarole?

Cheese plus other ingredients. Without cheese there is no casserole. It become's a pile of poop that is referred to as a pooparole.

Mac doesn't like cassarole because all he likes to eat pooparole.

cassarole - meme gif

Cheese with other ingredients. A cassarole with out cheese is a pooparole, referring to what it taste like.

Mac doesn't like cassarole because he eats to much pooparole.

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