Step 1

Preheat oven to 350º Fahrenheit. Spray a 9" X 9" baking pan with cooking spray. Line a plate with a paper towel

Step 2

Heat a large skillet over medium-high heat. Add bacon and cook, stirring occasionally, until bacon is crisp. Transfer bacon to the paper towel lined plate using a slotted spoon.

Step 3

Discard all but 1 tablespoon of bacon drippings and place skillet over medium high heat. Crumble the ground beef into the skillet. Brown the beef on all sides. Transfer to the prepared baking pan.

Step 4

Discard all but 1 tablespoon of the beef drippings from the skillet. Place skillet over medium heat. Add mushrooms. Cook mushrooms, stirring occasionally, until just tender. Transfer to the prepared baking pan.

Step 5

Add pickles, onions, and bacon bits to the baking pan and stir together with the ground beef and mushrooms.

Step 6

In a medium mixing bowl, stir together the cream cheese and sour cream until smooth. A fork or a mixer works well for this process. Stir in the Worcestershire sauce, mustard, onion powder, garlic, salt, pepper, and the red wine vinegar. Gradually add the heavy whipping cream, a tablespoon at a time, stirring after each addition. Stir in 1/2 cup of the cheese, reserving 1/2 cup for later.

Step 7

Spread the cheese sauce over the ground beef and mushroom mixture. Sprinkle the remaining 1/2 cup of cheese over top.

Step 8

Bake in the preheated oven about 25 minutes or until cheese is melted and mixture is bubbly. Allow to cool 5-10 minutes before serving.