Played with in Iron Man 2 when Tony Stark thinks he's spending his last minutes eating donuts.
Towards the end of Thor, Asgard holds a feast as their way of mourning Loki's Disney Death.
The American post-credits scene of The Avengers has the team eating shawarma in awkward silence. Played With in that it chronologically takes place between the climactic final battle and the events of the closing scenes of the movie proper.
At the end of The Dark Knight Rises, Alfred sees Bruce and Selina dining at the café in Florence.
Charlie and the Chocolate Factory ends with Willy joining the Bucket family for dinner, and Mrs. Bucket gently scolding him and Charlie for talking about business matters at the table.
A lot of episodes of Teenage Mutant Ninja Turtles (any version) end with the heroes (and often their allies too) chowing on pizza. (Either in the lair or somewhere else.)