01 -
Gently mix the ground beef with salt, pepper, garlic powder, onion powder, and smoked paprika until just combined. Avoid overworking the meat.
02 -
Divide the mixture into four equal portions and form patties slightly wider than the lettuce cups. Press a shallow thumb dimple into the center of each patty.
03 -
Heat the olive oil in a large skillet over medium-high heat. Cook the patties for 3-4 minutes per side until browned and cooked through. Add a slice of cheddar to each patty in the last minute and cover briefly to melt.
04 -
While the patties rest, stir together the mayonnaise, yellow mustard, ketchup, and pickle relish in a small bowl.
05 -
Spoon sauce into each lettuce cup, add a warm patty, and top with tomato, red onion, pickles, and avocado. Fold the lettuce around the fillings and serve immediately.