First, prepare the pickle dip: Combine a jar of chopped pickles, 2 chopped fresh jalapeño peppers, 1 cup chopped green onions, 1/2 cup shredded colby jack, 1/2 cup shredded cheddar, 1 cup greek yogurt, 1 cup sour cream, 1 cup whipped cream cheese, 1 pack ranch seasoning, 1 tbsp red hot sauce, 1 tsp cajun seasoning, 1 cup chopped bacon, 1 tbsp pickle juice, and 1 tsp garlic powder in a bowl and mix well until thoroughly combined.
Next, start by slicing the raw bratwursts down the center to open them up, creating a boat shape. Pipe in the prepared pickle dip into each bratwurst boat and dust generously with cajun seasoning. Place the filled bratwursts on the grill preheated to 375°F for about 40 minutes, or until cooked through and nicely browned. Once cooked, place each bratwurst on a toasted bun and top with your favorite mustard.