Add all ingredients into a large saucepan or stockpot. Bring to a boil, then reduce the heat to low. Let it cook on low heat for some time.
Let simmer, uncovered, for 45 minutes, stirring every couple of minutes.
Pour into small freezer-safe containers (I used 16 oz containers and filled them about ¾ full). Let the containers cool to room temperature, then stick in the freezer.
Notes
Salsa will stay fresh in the freezer for 3-4 months. Let thaw and stir well before serving.Recipe source: Taste of Home