In a mixing bowl, combine the ground beef, chopped red onions, minced garlic, Worcestershire sauce, salt, and pepper. Mix well and form the mixture into four equal-sized burger patties.
Over medium-high heat preheat your grill or stovetop pan.
Grill or cook the burger patties for about 4-5 minutes per side for medium-rare or longer for your desired level of doneness.
During the last minute of cooking, place a slice of cheddar cheese on each patty and cover to let it melt.
Toast the hamburger buns on the grill or in a toaster until they're slightly crispy.
Assemble your Jesse Kelly Burgers by spreading the secret sauce on the bottom bun, followed by a lettuce leaf, tomato slice, bacon, a cheese-topped burger patty, and the top bun.
Serve the burgers hot.