In a large bowl, mix together the cooked chicken, cooked crumbled bacon, sour cream, cream of chicken soup, ranch seasoning, and grated cheddar cheese.
Mix well and spread into a 9x13 baking dish.
Top with the tater tots and bake at 400 for about 40 minutes.
Garnish with the rest of the bacon and some sliced green onions.
Serve hot and enjoy!