I am so sorry to hear of your loss. I hope you have lots of support at this time.
Do everything you can not to give in to the temptation. It will only make you feel worse, when you are done. I realize that it is easy for me to say, so do your best
If you like rhubarb pie, then this might help. Get either fresh or frozen rhubarb. The frozen is already chopped up, so you can just pop it in the microwave for about 7minutes, then check it, go by 2 min increments then to see once it is mushy and warm. Once done, just add some Splenda, or Stevia, sit back and enjoy...it feels totally decadent.
If you have fresh stuff, then just reduce your cooking time.
Wishing you all the best