Yes, you can freeze hamburger soup. When I make a big pot of hamburger soup, if there are any leftovers, I measure out 2 bowls, one for my husband and one for me, then I put it in a sealed container. I may have 2 or three containers. I put them in the freezer, and then use one container when we are hungry for some great-tasting soup. Let the container sit on the countertop until it is partially thawed, and then put it in a pot. Cook the soup on medium heat until warm enough to eat. Hamburger soup can be in the freezer for about 4 or 5 months.