copycat in & out "grilled onion wrapped flying dutchman"

Name: copycat in & out "grilled onion wrapped flying dutchman"
Cuisine: American
Ingredients: 1/2 lb ground beef (I prefer 85-15); 4 deli deluxe american cheese slices; 1 large white or yellow onion; 1 tsp worsteshire sauce; 1/2 tbsp of your favorite burger seasoning (click here for the one I used); 2 tsp yellow mustard; pickled yellow hot chili peppers; splash of balsamic vinegar; salt; pepper; 2 tbsp olive oil; 1/2 cup mayonnaise; 1/4 cup dill pickles; 2 tbsp ketchup; 2 tsp monk fruit sweetener (or sugar); 1/2 tsp onion powder; 1/2 tsp garlic powder; 2 tbsp pickle juice or white vinegar; step 1 finely chop up your hot chili peppers & pickles; step 6 flip onions (again)