I'm not sure how to stop her from suggesting it over and over ....my mom suggested 4 lbs of polish sausage for dinner for 5 people (1 won't eat it ever) a meal which also included half a dozen vegtables, 3 types of potatoes , turkey , ham, 2 types of bread and pies. This is my one holiday meal , everyone gets their favorites I could cut the menu by 70% and still have a reasonable meal. She was paniced for weeks that I only had a two pounds (two types or I would have went with one) I think sometimes people who used to be host get stuck in a loop "I need 4 lbs of sausage" for 15-20 people.
We also had this conversation... "Are you having corn? ", "well I was thinking 3 types of potatoes , peas & carrots , brussel sprouts , broad beans , 3 color bell pepper & cucumber salad and Cole slaw was enough" , " but you have to have corn, we always have corn" , "we have been getting carry out or going to a restaurant for 20 years, we haven't had corn for thanksgiving since then" ................" but we have to have corn"* she can't eat corn BTW so WE meant my Aunt who didn't care one way of the other, my husband who didn't want corn , my son who never experinced the traditional dinner with corn she was remembering and myself** I gave in on the corn (it's frozen corn so no big deal but not the sausage) She was better the second year, so there is hope.