Eating ad nauseum

Ad nauseum roughly means to the point of nausea, right?

So, my purpose in writing this post is hoping that you, the wise elders of the internet, can identify a gap or something in my eating schedule and help with some weight packing on.  As I alluded to in my last post, I'm needing to work on my weight gain.

With twins, the powers that be dictate that they want you to have gained twenty pounds by twenty weeks.  Didn't pull this off at all last time, particularly as I lost almost twenty pounds with two GI bugs at 15-17 weeks, but am really trying to play things by the book this time.  So, you may be asking, how much are you up now?  One pound according to one doctor and two according to the other.  And this is at 12 weeks and change, so I need to gain 2.5 pounds each week to hope to make it by twenty.

Current eating schedule:
One of the Boost Plus recommended protein things plus a yogurt and some of whatever the boys are eating around 6:45 along with my 14 vitamin and minerals
A breakfast at 7:45 or 8 consisting of brisket tacos, cheesesteaks, chicken sandwiches or something similar
Snack around 9:30 that is often cheese and crackers
First lunch at 11
Second lunch at 1 and both lunches are full meals
Try to plan some leftovers from dinner or one of the lunches for about 3
Dinner at 5:45 or so at the house
Put Chiron down and come down every night to a smoothie that Paul has made with protein powder in it. 
Often another snack late as well as typically eating at least once during the night

So, what else should I be doing?  I've even added some eggs, which I am NOT a fan of since Barbara Luke is such a fan of them.  I've tried adding quantity such as taking a cheeseburger up from two patties to three and that's not enough.  So, experienced folks, what do you have for me?  I've been keeping a pretty good protein emphasis in line with "the book", but should I perhaps try more carbs for a weight effect?

Chiron's weight was fantastic at 29&6, so I think I did a good enough job last time and I know I'm making even more of a conscious effort this time, so I'm not greatly concerned, but I would love to see that weight jumping up a few pounds.  But again on the flip side, Aurelia was dead, so perhaps doing things different is something I should really concentrate on.

Also, anyone have any good during the night food ideas?  I really feel this is where I could be putting more calories into my day, but it's just a hassle.  Last time I mainly did protein bars at this time.  This time I've been just doing things like nuts, triscuits, dried fruit and other easy to just have in the drawer foods.  There is a fridge in Chiron's room, so I could put more of the Boost Plus things up there, but those disturb me as primarily corn syrup despite being sworn to in lots of twin resources.

And I think I may love cheesesteaks more than any other food on this planet.  Last time it was gyros, but this love is more convenient as there are close options including one that starts serving cheesesteaks at eight am!

P.S. I had weight gain problems with Trajan as well.  So, I'm definitely not a pro at the gaining weight while pregnant game even with a singleton metabolic issues.