"go to" when your calories are too low for the day?

These are great ideas!

I'm thinking of the highest fat items for satiety...
-peanut butter
-coconut oil with cocoa powder and stevia
-nuts
-avocado

chocolate milk and peanut butter and jelly sandwich

If you eat healthy for that day. You should consider to eat what you want as long as it fits to your remaining calorie goal. Spoonful of icecream or yoghurt or cookies..

my "go to " is bed.

I don't eat if I'm not hungry: that seems counter-productive, and likely to lead to bad habits.

Nuts are nutritious and calorie dense, those might help you.

That can be dangerous for many people. Hunger is often more tied to mental state and hormones than what your body actually needs. There are tons of people who are trying to lose weight and "don't feel hungry" eating 1000 calories a day or less, even though that's often a huge huge calorie deficit.

my "go to " is bed.

I don't eat if I'm not hungry: that seems counter-productive, and likely to lead to bad habits.

Nuts are nutritious and calorie dense, those might help you.

I agree, shouldn't eat mechanically just to hit a number. Should eat when you feel hungry... real hunger, not just a craving hunger feeling.

As above, this can be dangerous. If we were good at understanding and feeding our hunger, we wouldn't have ended up on MFP. Hunger can be very misleading.

Just had oral surgery and was worried about hitting 1200 as I was limited to soup. My solution was a peanut butter, banana and milk smoothie. Thick, cold and satisfying. Also a good number of calories if you do two full tablespoons of peanut butter.

Oh my god, throw in a spoon of nutella and I think I just died and went to heaven....

Damn, craving incoming!!!!

CRUNCHY NUT PEANUT BUTTER...............MMMMMMMMMMMMMM!!!!

No idea what this "skinny rules" is but if I'm under for calories, I make this:

http://chocolatecoveredkatie.com/2012/07/26/reeses-peanut-butter-cup-baked-oatmeal/

It's just another in the endless flood of diet books with a big list of "rules" about what to eat and what not to eat. JARD (Just Another Restrictive Diet).

A bunch of them are really ridiculous, like "no carbs after lunch" (really? that avocado on my chicken is going to make me fat, huh?) and "go to bed hungry."

Peanut butter on apple wedges. Greek yogurt smoothie.

Honestly I wonder how OP could be hitting appropriate nutrient goals (protein, fat, vitamins and minerals) at only 900 calories a day.