A running gag is a cook trying to get Shaggy and Scooby to eat Crubeens and Farl (in the manner of Dr. Seuss' "Green Eggs and Ham.") Although the closed captioning lists it as Crow Beans and Fowl, the items shown are definitely Crubeens (boiled pigs' feet which are then battered and fried) and Farl (a flattened Soda bread in a round circle and divided into farls meaning 4 parts. It is then cooked on a dry griddle or pan.) NOTE: Normally farl is not green.
The name of the giant, Huge McFinn, is based on an old Irish legend of a giant called Fionn mac Cumhaill (Finn MacCool).
Daphne's quirk in this episode is speaking with an Irish accent.
Fred the Knight has an image of the Mystery Machine on his shield when hunting the giant.