1) The flashback of Liz freaking out about her mac & cheese.

2) When Liz scarfed down her sandwich in the airport security line.

3) When Jonathan pulled out the collage that he made for Jack.

Also, was Brian Dennehy's face just a tad bit too close to Jenna's boobs during the drunken sing along?

One of my favorites of the season... it definitely gave me a hankering for sandwiches as well.