I have been tinkering with a couple of variations on the cuban sandwich. Meat and dairy. The key in both is mustard and pickles.
Kosher Meat Cuban:
1 slice of turkey meat like Of Tov, Tirvat Zvi or Hod Golan lightly fried
1 fried egg sunny side up
1 Kinneret triangle potato latke
Kosher Dairy Cuban:
Substitute slices of sharp cheese for meat in above variation