Preheat a smoker to 275°F. Adding cherry wood chunks will enhance the smoke flavor of the burgers.
In a large mixing bowl, combine the ground beef, egg, panko, diced jalapeño pepper, salt, and black pepper. Mix the ingredients together until well combined.
Divide the mixture into 7 equal portions and form each portion into a 1/4 lb patty, making sure that each patty is of even thickness. This will help the patties cook evenly in the smoker.
Place the formed patties in the smoker and let them smoke for about 30-40 minutes. This will allow the smoke to penetrate the burgers, infusing them with a rich smoky flavor.
While the burgers are smoking, you can prepare the pico de gallo. In a medium mixing bowl, combine the diced tomato, diced jalapeño pepper, diced sweet onion, chopped cilantro, the juice of 2 limes, and a pinch of salt and pepper. Mix well and set aside.
In another medium mixing bowl, mash the avocados and mix in the juice of 1 lime, a pinch of salt, and a pinch of pepper. This will be your guacamole.
When the internal temperature of the burgers reaches 155°F, remove them from the smoker and top each patty with a slice of cheddar cheese. Return the burgers to the smoker and continue smoking until the internal temperature of the burgers reaches 165°F.
While the burgers are cooking, you can toast the buns to your desired level of crispiness.
To assemble the burgers, spread a generous amount of mayo on the bottom and top buns. Place a lettuce leaf on the bottom bun, followed by a juicy patty with melted cheddar cheese. Spoon a generous amount of guacamole on top of the patty and then add a generous spoonful of pico de gallo on top. Place the top bun on the burger and serve immediately.
Enjoy your delicious and smoky burgers!