
Mix your Cajun seasonings into the ground beef. Hand mix to incorporate, but do not overmix.
Form 12 thin patties with the seasoned ground beef. 6 of them should be slightly larger, to form the base. I like to use a burger press for this process.
Top each of the larger patties with a slice each of American and pepper jack cheese.
Next, top each of the stuffed burgers with the smaller patties and hand form the meat around the cheese. You should still have burger-shaped patties.
Grill or pan sear the burgers in a bit of oil 2-3 minutes per side, until the cheese is melted and the burgers are cooked through to your preference. Remove from heat and let the burgers rest a couple minutes to let the cheeses relax.
Optional Jalapenos. When the burgers are coooking, grill or pan sear the jalapeno and serrano peppers about 10 minutes, rolling a bit to get each side of the skins, until the skins char up and blacken. Slice them into rings and discard the stems.
Serve the burgers onto buns topped with sliced peppers and your favorite toppings.