These are some things I've learned myself to add 56lbs in less than two years and taken from others. Shaw,Tate,Coan...
Drink whole milk. Chocolate/egnogg even better.
More salt,more butter,more olive oil.
Pasta and ground beef is easy.
Eat a badass breakfast. 6 dollars at mcdonalds can easily be 2000 calories. Its not hard to eat a whole box of cereal. Seriously,were not doing a clean bulk here. This is simple mass. Don't forget to eat right before bed.