Cheesy squash casserole

This cheesy squash casserole is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. How was the ‘overdramatic’ sense derived? This sandwich is full of cheesy goodness.

2005, Thomas Mann, Joseph and His Brothers, translated by John E. Woods, New York: Everyman’s Library, “Joseph in Egypt,” Part 3, p. I like pizzas with a cheesy crust. Overdramatic, excessively emotional or clichéd, trite, contrived. 2010, Michael Clarkson, The Secret Life of Glenn Gould: A Genius in Love, Toronto: ECW Press, Chapter Four, p.