Slice chicken into strips, season with salt and pepper and cook in medium skillet with butter until done. Remove and set aside.
Dice bacon, add into medium skillet and cook until crisp. Remove and set aside with chicken.
Assemble salads. Divide the mixed greens between 4 large bowls. Top each with 1/4 of the chicken, bacon, tomatoes, boiled egg, and avocado. Sprinkle 1 tbsp of blue cheese on each, drizzle ranch or desired dressing on top.
Serve immediately.
Nutrition: serves 4; 550 calories, 8gm net carb, 49gm protein.