Portion sizes Ten for Dinner

[Cheese Mechanic]

Dear All
Heroic No1 daughter has stepped into the breech to do Christmas dinner this year, and host 10 of us.

She is fine with everything, except the veg. She wonders what weight of veg she should allow for each person, wanting to do plenty of course, but not too much over

She is roasting Carrots and Parsnips, and steaming Broccoli, Leeks, Cauliflower and Sprouts.

So six veg in all, bearing in mind that they will not be in equal demand (she's unaware of the dietery quirks of at least 4 of the diners) has anyone any opinions of what weight of each she should prepare?

TIA

[Cheese Mechanic]

Ooops! apologies folks, there will be spuds in abundance, she is not so worried about them as they can be easily used as "leftovers" and knows they will be fallen upon with gusto.

Thanks for the contributions thus far .

Ta!