Cook bacon in a skillet over medium heat, flipping occasionally, for 8-12 minutes until crisp. Transfer the bacon to a paper towel to cool, then crumble. Set aside.

Season the chicken with salt and pepper. In the same skillet, add the chicken and cook for 6-8 minutes on each side, or until fully cooked. Transfer the chicken to a cutting board and, once cool enough to handle, dice it.

In a bowl, combine the greens, chicken, hard-boiled egg, cherry tomatoes, blue cheese, and crumbled bacon. Drizzle with vinaigrette, toss to coat, and serve.