Shit! that's like 5000 cals. I thought I was eating a lot at 4000. Only suggestions I can think of are increasing amt. of potato at meals, natty PB is the shizzle so def. add that where you can, and try switching to thicker rolled oats or scoth oats. Scotch oats give you the same amount of cals. for half the amt.
I do alot of pasta, beans and rice. I'm up to around 1 1/3 c. dry pasta per meal ( depending on which one I eat) or sometimes closer to 2 c. dry. I have about 1/2 rice dry w/ 1 c beans cooked. I get these frozen black and red beans from Wal Mart. They are pre cooked w/ out preservatives and salt, all you have to do is put them in some hot water for a few mins and they are done. around 245 cals per cup for the red beans ~ 200 for the black beans
I do sweet potatoes as well, I'm up to 21 oz of sw. pot. per meal when I have them.