Too many meatballs for 150 people.
Meatballs (115 lbs of meatballs)- I would do no more than 40.
Vegetable Tray w/ dip- see the veggie tray page. Consider doing 1 of my large relish trays and then veggies and dip for 100.
Chicken Salad Sandwiches (10 dozen)-If whole, too many with also the ham. If pieces OK, probably have some left
Vegetable Sandwiches (10 dozen)-?? Too many, 6 dozen should be plenty
Tropical Fruit Cocktail (6 pound cans)- need 40 pounds total. A fruit slad made with frozen fruits and fresh strawberries and grapes is much tastier.
Ham and Cheese Rollups- same as chicken salad
Potato Salad (5 pound containers)- 50 pounds. If store bought, add 5-8 chopped hard boiled eggs per 5 pounds.