Menu is: fried chicken I'm buying, pulled pork, Swedish meatballs, Cole slaw, potato salad, spaghetti salad, tuna, baked beans, a relish tray, veggie tray, and watermelon. We will be providing ice tea, punch, lemonade, and water bottles.

fried chicken I'm buying, 1 piece per person
pulled pork, 20 pounds, 100 buns or 240 slider buns
Swedish meatballs, 30 pounds, 3 quarts sauce per 10 pounds
tuna salad, about 2 gallons- there is a very large can of tuna available at wholesale restaurant places, you need 2

Cole slaw, 4 gallons, see my article to make ahead
potato salad, 50 pounds potatoes
spaghetti salad, 8 pounds dry pasta

a relish tray, do 2 of the classic relish trays on the veggie tray page
veggie tray, OK but a fruit tray would be an excellent substitute, see either the fruit tray page or the veggie tray page. Amounts and preps.

baked beans, 12 pounds dry (2 roasters)or 5-6 #10 cans
watermelon, 1/2 pound whole per person, plus ice and ice chests.

ice tea, about 9 gallons, 1/3 unsweetened
punch,
lemonade,
About 10 gallons all together; frozen lemonade is much better than powder; you estimate the flavor split, or just do one
water bottles, 2 per person, you might buy where you can return unopened.