One wolf to another
I have found that I crave food for similar reasons but differing reasons too. I have complex mental health issues and use food as either a reward or a punishment. Saying that I've been eating more because I'm cold and bored.
Do you live alone? If you do live with another person could you take it in turns to make something to eat? If you live alone, and to continue the subject of layers make sure you have a dressing gowm and thick socks to hand when getting out of bed so you keep up the level of warmth when outside the bed.
Easy foods - cup a soup (check the carbs on everything as I dont know your level of diabetes), eggs, beans, tinned tomatoes, (all can be done in the microwave) Hubby eats pepperami.
Can you order food online save you going out? Means you only have to answer the door once and then fill your cupboards etc. Most supermarkets have the carb content listed if you go into the item so you're not wasting money.
The thing here is to keep you warm so go for foods that need a quick couple of minutes in the microwave or stove top.
If you have a sitting area take the duvet and blankets with you, you dont need to stay in bed. Try to make a menu but dont forget some treats in your weekly/monthly shop. And a takeaway wont harm you once in a while, all the time must make a dent in your pocket.
Good luck