The thrill of finding out what mom packed in your brown bag lunch is almost exciting as chowing down on Brown Bag Casserole! Flavorful ground beef is smothered in savory, golden mushroom soup and creamy cheddar cheese soup–yum! It's topped with everyone's favorite, crinkle-cut fries. Yes, you read that right, salty and crispy golden french fries atop the creamy deliciousness. Brown Bag Casserole is a flavor blast from the past, but your tastebuds will be delighted that they are in the…