macaroni meatball, I think this is a casserole?, about 8 pounds dry pasta, 8 pounds meatballs

potato salad, 30 pounds of potatoes
salad, use the plan for 100 table

rolls, 2 smallish per , 3 pounds butter

chicken, 1 piece per person (1 chicken per 8)
baked hams, 1 pound per 3 raw, per 4 if boneless ready to serve
plain and spicy mustard

I would add a cooked or roasted room temp veg, about 22 pounds

You need an appetizer plan, here is why.

Before the Buffet; Why You May Need an Appetizer Table
A self-catered buffet is a real challenge to the organizers, and things don't always come together as smoothly as hoped. By planning and setting up an appetizer area or "nibble table" which is ready when the guests begin to arrive, the cooks and servers have time to complete the arrangement of the dinner buffet. This is especially critical if there are children among the guests, or there is a wait before dinner, as at a wedding reception.

This does not have to be complicated. Three items, plus a punch, or two if one is alcoholic, are sufficient. Typically, include a fruit tray, a cheese tray and an attractive dip or spread; or you can go with a dinner theme such as TexMex with chips, salsas, Texas caviar and guacamole; Italian with bruschetta or antipasto; maybe shrimps or other cold seafood, if budget permits.

One appetizer service area is needed for each 100 guests.