In a large mixing bowl, combine ground chuck, sour cream, and ranch dressing mix. Fold in cooked bacon and cheddar cheese until just mixed.

Divide into four portions and shape into ¾ inch thick patties with an indent in the center.

Preheat your grill or skillet to medium-high heat (400°F).

Cook the patties for 6-7 minutes per side, flipping gently, until cooked to desired doneness.

Remove the patties and let rest for 5 minutes to allow juices to redistribute.

Assemble the burgers on toasted buns with lettuce, tomato, and preferred condiments, then serve warm.