you could also try something like this lyles generic bulking routine:
Squat: 3-4X6-8/3' (3-4 sets of 6-8 with a 3' rest)
SLDL or leg curl: 3-4X6-8/3'
Leg press: 2-3X10-12/2'
Another leg curl: 2-3X10-12/2'
Calf raise: 3-4X6-8/3'
Seated calf: 2-3X10-12/2'
Abs/low back: a couple of heavy sets apiece
Flat bench: 3-4X6-8/3'
Incline bench or shoulder press: 2-3X10-12/2'
For the Thu/Fri workouts either Repeat the first two or make some slight exercise substitutions. Can do deadlift/leg press combo on Thu, switch incline/pulldown to first exercises on upper body day. A lot depends on volume tolerance, if the above is too much, go to 2-3X6-8 and 1-2X10-12