Step 1

In a large bowl, combine all ingredients and mix well.

Step 2

Divide mixture into 4 ziptop freezer bags. Label and seal them tightly.

Step 3

Freeze the bags flat.

Step 4

Thaw one bag overnight (or for 8 hours) in the refrigerator.

Step 5

Dump the contents of the bag into a greased casserole dish (one bag fills an 8×8″ pan; two bags fills a 9×13″ pan)

Step 6

Sprinkle with additional shredded cheese, if desired.

Step 7

Bake at 350ºF for 25-30 minutes, or until heated through and bubbly.