To make the Big Mac sauce, combine all ingredients and place in a squeeze bottle. This can be made ahead and kept in the fridge for a month.

Preheat oven to 400 degrees F.

Sprinkle dried minced onion on the bottom of a 17 x 12 sheet pan. Use as much as you like.

Press ground chuck into pan, on top of onions until it completely covers the bottom. Sprinkle with a generous amount of seasoning salt.

Bake in oven for 25 minutes.

The meat will shrink in the oven. After 25 minutes remove and cover with slices of cheese. Place meat back in the oven for two minutes until the cheese is melted.

With a pizza cutter or a knife, slice the meat into 15 square rolls.

Place the meat in between the bun with some of the onion and pop on a few dill pickles. Drizzle with Big Mac Sauce. You are ready to serve.