Green’s Dictionary of Slang

(US short order) ham.

1913		Coconino Sun (Flagstaff, AZ) 26 Dec. 2/3: Railroad Eating House Lingo [...] A timid little man sat at a railroad counter and ordered ham and eggs [...] the waiter turned his face to the kitchen and called casually, ‘A Mogul with two headlights’.
1941		Packing & Shipping 68-9 clvi: Another big fount for words was the old beanery, where scrambled eggs became a ‘wreck on the main line,’ and ham and eggs were a "‘ogul with two headlights’.
1945		F.H. Hubbard Railroad Avenue 325: [as 1913].