SIDES:
Pasta Salad (one with noodles, pepperoni, cheese, broccoli) I can get order 5 lb containers of this.

Bagged lettuce salad. Can buy 5 lb bags.

Fruit salad (how much to make??)

I have someone making a Oriental Salad...maybe skip that?

Son wants mashed potatoes. Is that hard to keep warm? I would like it easy where I can buy it in bulk and just mix/heat up. How much?
Maybe throw in just some baked beans in crockpot.

Desserts is just bars people will be bringing and cupcakes or cookies.

Pulled pork for sandwiches; 1 pound ready to serve per 4 people; 5 full size buns or 10 slider buns per pound. 5-8 pounds sliced onions per 100, 2 gallons slaw per 100

Pasta Salad (one with noodles, pepperoni, cheese, broccoli) I can get order 5 lb containers of this.

Bagged lettuce salad. Can buy 5 lb bags. Allow 10 pounds salad including ad-ins and 3 quarts dressing per 100

Fruit salad (how much to make??) 3 gallons per 100- consider fruit trays- prettier, easier to serve and eat, leftovers keep better.

I have someone making a Oriental Salad...maybe skip that? OK if they want to-

Son wants mashed potatoes, definitely difficult for 300- needs 120 pounds. Chips, 1 pound per 12, dips 1 pint per pound, would be a perfectly OK change, and offer him a private stock of mashed?

Baked beans, 4#10 cans (3 gallons) per 100.

Consider a crock pot of veggie sausages for the vegetarians who will be there, with 300 people will have some. Field Roast is a tasty brand.