Add ground beef, diced onion and minced garlic. Break up ground beef with a spoon.
Cook until the onions are translucent and beef is tender; about 7-10 minutes. Drain any extra grease.
Cool meat completely, then portion into freezer bags. I usually will portion 2 1/4 cups of meat per bag, which equals about a pound. Be sure to label with a date - frozen cooked ground beef will last about 3-4 days in the fridge and up to 4 months in the freezer.