Mix together all ingredients in a bowl and transfer to a large resealable freezer bag or if you want individual portions, into Souper Cubes or quart bags. Freeze.
Cooking instructions:
Thaw. Heat over medium-high heat on stovetop until bubbling. Reduce to a simmer for 20 minutes. Or in slow cooker on low for 2-4 hours. Or in microwave, heat 2-3 minutes until bubbling. Serve with a dollop of sour cream and garnish with sliced green onions.