Preheat oven to 350 degrees F. Place potatoes in large saucepan. Cover with water. Add 1 tablespoon of the Marinade Mix to water. Bring to boil. Reduce heat to low; cover and simmer 10 to 15 minutes or until potatoes are fork tender. Drain and return potatoes to saucepan. Add milk, sour cream, 1/2 cup of the cheese, 1/2 of the bacon and remaining Marinade Mix to saucepan.

Mash potatoes using a potato masher or electric mixer until potatoes are smooth and creamy. Spoon into 2-quart baking dish. Sprinkle with remaining 1/2 cup cheese and bacon.

Bake 15 minutes or until heated through. Sprinkle with green onion.