david please provide input on what you can and cannot eat. for me, the only way to cram enough calories in effectively and do it without destroying my intestines was shakes. lots of calorie packed shakes. i rarely check into this forum anymore, but please run through some of my posts. there is a very detailed regimen you can follow in one of them--simply substitute what i eat for things you CAN eat. i was at the point where i was having 4-5 shakes a day, i gained more than 24 lbs in 5 months, steroid free, somewhere in the 10-12% body fat range. its all about getting caloric surplus each day (take in more than you burn). working out stimulates growth and testosterone. make sure to get your vitamin d3 and make sure to squat and deadlift.
good luck