A big bowl of oatmeal mixed with protein powder did wonders for putting on the pounds when I didn't need it.

What about a type of weight gain smoothie? Start with a can of full fat coconut milk, protein powder, banana, greens, seeds, nuts, PB, frozen berries make it taste like a milkshake. Some of these use raw egg (visions of Rocky ) also avocado http://scdlifestyle.com/2013/04/5-r...akes-paleo-scd/

And adding legumes to the grains? Chili? Lentil salads?