In a large baking dish, add refried beans and spread across the bottom.
In a small bowl combine the sour cream with the taco seasoning, then spread in an even layer over the refried beans.
Next spread the layer of salsa over the top. In layers add the lettuce, corn, tomatoes, colby jack cheese, cotija cheese, green onion and cilantro.
In another small bowl, combine the Greek yogurt with the lime juice. Add mixture to a ziplock bag, snip the corner, then pipe/drizzle the lime cream over the top of the million layer dip. Add the remaining reserved amounts of ingredients.
Place in fridge for at least 30 minutes, then serve with warm chips or tortillas.