You need a recipe using 30 pounds of ground meat to make meatloaf for 100. Here is the US military basic recipe for meatloaf for 100 to give you some help on amounts:
MEATLOAF for 100
Ingredient
BEEF,GROUND,BULK,RAW,90% LEAN 30 pounds
BREADCRUMBS 3 3/4 pounds
SALT 3 3/4 ounce
PEPPER,BLACK,GROUND 1/4 ounce
GARLIC POWDER 1/3 ounce
MILK,NONFAT,DRY 2 3/8 ounce \
WATER 2 7/8 pounds / thats 3 quarts liquid milk
CELERY,FRESH,CHOPPED 1 pound
ONIONS,FRESH,CHOPPED 1 pound
PEPPERS,GREEN,FRESH,CHOPPED 1 pound
EGGS,WHOLE,FROZEN 2 3/8 pounds
JUICE,TOMATO,CANNED 3 1/8 pound
Combine beef with bread crumbs, salt, pepper and garlic; mix until well blended.
Reconstitute milk.
Add milk, celery, onions, sweet peppers, eggs, and tomato juice. Mix lightly but thoroughly. DO NOT OVERMIX.
Place 11 pounds 6 ounces meat mixture into each steam table pan and divide into 2 loaves per pan.
Using a convection oven, bake 1 hour 15 minutes at 300 F. CCP: Internal temperature must reach 155 F. or higher for 15 seconds. Skim off excess fat and liquid during cooking.
Let stand 20 minutes before slicing. Cut 13 slices per loaf. CCP: Hold for service at 140 F. or higher.
