01 - Place bacon in a large skillet over medium heat. Cook until crispy, about 6-8 minutes. Transfer to a paper towel-lined plate to drain excess grease. Crumble or chop into bite-sized pieces once cooled.
02 - Add ground beef to the same skillet. Sprinkle with half the salt, pepper, garlic powder, and smoked paprika. Cook, breaking up with a spoon, until browned and cooked through, about 6-8 minutes. Transfer to a bowl and keep warm.
03 - Add diced chicken breast to the skillet. Season with remaining salt, pepper, garlic powder, and smoked paprika. Cook until golden brown and cooked through, about 5-7 minutes. Remove from heat.
04 - Arrange lettuce leaves on a large serving platter. Spoon portions of beef, chicken, and crumbled bacon onto each leaf, distributing evenly.
05 - Top each lettuce wrap with diced tomato, sliced red onion, and cucumber slices.
06 - Drizzle ranch dressing generously over each wrap. Serve immediately and allow guests to assemble additional wraps as desired.