I find myself in the same situation quite often, and I've found EDT to be fantastic for this.
In your situation, I would devise 5 EDT based sessions, with some maximal strength stuff thrown in. I'd probably do 3 on, 1 off, 2 on, 1 off - repeat.
e.g. day 1
Bench x rows
weighted chins (6sets4reps)
Ham curls x calf raises
You get the idea. I'm usually in and out of the gym in 30/40mins with this, and as such can maintain a higher frequency than with longer workouts.
I hope this gave you some ideas...