In a bowl combine eggs and milk; stir in crumbs, onion, and salt.
Add meat; mix well.
Chill.
With wet hands shape meat into 72 one inch balls.
Place in two 15 1/2x10 1/2x1-inch baking pans.
Bake at 375° for 25 to 30 minutes.
Place meatballs on another baking pan to cool; place in freezer just till frozen.
Using 24 meatballs per package, wrap in moisture and vapor proof bags.
Seal, label, and freeze.
Makes 72 meatballs.
Microwave cooking directions: Prepare meat mixture and shape as above.
Arrange unbaked meatballs on baking pans; place in freezer just till frozen.
Using 24 meatballs per package, wrap in moisture and vapor proof bags.
Seal, label, and freeze.
To use, place meatballs in single layer in 12x7 1/2x2- inch glass baking dish.
In countertop microwave oven cook, covered, till thawed, about 4 minutes; rearrange meatballs after each minute.
Micro-cook, covered, till done, about 6 minutes; turn meatballs over and rearrange twice.
Drain.