Heat 2 tablespoons of olive oil in a cast iron skillet over medium-high heat. Add the beef patties and cook for about 4-6 minutes on each side, or until they reach a perfect sear. During the last minute of cooking, place a slice of cheddar cheese on each patty and cover with a lid to melt.

While the patties are cooking, scoop the ripe avocados into a mixing bowl. Add 1 tablespoon of lemon juice, ¼ teaspoon of garlic powder, and a pinch of salt. Mash everything together until creamy yet slightly chunky.

Spread your choice of sauce on the bottom half of each brioche bun. Layer on crisp lettuce, the cheesy beef patty, fresh slices of red onion, and two strips of crispy bacon.

Top each burger with a generous scoop of the creamy avocado mixture and place the top half of the brioche bun on each burger.