Cheddar Cheese Stuffed Carmelized Onion Bacon Burgers on Pretzel Rolls

So my Blue Cheese Burgers With Bacon Jam were such a big success that I wanted to venture out this time. I made these Homemade Pretzel Rolls and added a variety of fun items to the burger to create this very long titled but tasty burger!! For some reason using a green tomato just felt right!! I think it was because of the sweetness of the caramelized onions and bacon, coupled with the spicy bite of chipotle mayo that made it all ok!! ;)

2 lbs ground beef
6 2x2x1/4" pieces of cheddar cheese
1 lg onion sliced thin, and caramelized
12 slices of cooked bacon
1 1/2 cups arugula
6 slices of green tomato
1/2 cup chipotle mayo (1/2 cup mayo with 1 mashed canned chipotle pepper mixed in)
6 pretzel rolls

Divide hamburger meat into 6 equally sized balls. Then divide each of the 6 burger balls in 1/2 and form patties. Top 6 of the '1/2' patties with the cheddar cheese and top with the other half of the burger patties. Press to seal the edges. Bake or grill until desired doneness.

Assembly
Slice the pretzel buns in half and spread chipotle mayo on bottom bun. Place burger, caramelized onions, bacon, tomato, and arugula and top with bun. Eat and enjoy!!