sstay at home mom not eating

any other SAHM's not eat??? i just got in bed and realized i have only eaten half a piece of toast today... i do this everyday. i feel like i'm too busy to eat! unless i am out to eat or go to my mother's for dinner. my daughter has full healthy meals 3x a day. and what she eats is not appetizing to me. food just doesn't taste as good as getting the laundry done. i'm a single mom as of a month ago and even before that my boyfriend was never really home but i would make dinner for him every night and that's when i would eat. since he's been gone i just don't bother anymore..... when i was pregnant my not eating was an issue i literally had to force myself to and even now i'll have a craving for a cheeseburger- go get it, then i can't seem to get it down...maybe it's just a habit now from pregnancy????  pre pregnancy i was 164.... gained 17lbs in pregnancy and now, 10 months post partum i am 115.... any ideas?? what do you snack on all day?? what do you make yourself for dinners??? easy 1 person meals!