Combine the frozen corn, cooked bacon, whipping cream, sugar, salt, pepper, and butter in a large freezer bag. Squeeze the ingredients together to combine.
Remove excess air and seal.
In a medium sized freezer bag, add ¼ cup grated parmesan cheese. Staple the small bag to the larger bag above the seal.
Freeze.
Thaw.
Preheat the oven to 400°.
When thawed, pour the contents of the large bag into a casserole dish.
Whisk together the milk and flour in a small bowl. Pour the mixture into the casserole dish and stir.
Place in the oven to bake for 25 minutes. Top with the parmesan cheese and return the pan to the oven and bake for an additional 10 minutes.