'A piece of cake' - That was easy ; simple. 'A couch-potato' - A lazy person ; watches t.v. all day. 'Take it with a grain of salt' - Don't trust or believe whatever was said. You don't know if it's true. It's from a suspicious source.

Here in the United States, many people who are absolutely "in love" with food are called FOODIES. A foodie is someone who spends a lot of time thinking about food. Maybe s/he cooks all kinds of food; maybe s/he is constantly looking for new food experiences. (Each time a new restaurant opens, s/he will be there!)

There are sooooOOOOOOoooo many: http://www.idiomconnection.com/food.html http://blog.palabea.com/index.php/idioms-expressions-with-food/

McDonald's - I'm lovin' it maybe?