01 - Preheat oven to 375°F (190°C).
02 - In a mixing bowl, whisk together Dijon mustard, honey, mayonnaise, and lemon juice until smooth. Set aside.
03 - Flatten chicken breasts slightly for even cooking. Season both sides with seasoned salt and black pepper.
04 - Heat olive oil in a large skillet over medium-high heat. Sear chicken breasts for 2 to 3 minutes per side until golden brown but not fully cooked through. Transfer to a baking dish.
05 - In the same skillet, cook bacon slices until crispy. Remove and drain on paper towels. Crumble or leave whole.
06 - Melt butter in the skillet over medium heat. Sauté sliced mushrooms until browned and tender, about 5 minutes.
07 - Brush each chicken breast generously with honey mustard sauce. Top with sautéed mushrooms and bacon, then sprinkle Colby Jack and Monterey Jack cheese evenly over each breast.
08 - Bake uncovered for 10 to 15 minutes until cheese is melted and chicken reaches an internal temperature of 165°F (74°C).
09 - Garnish with chopped fresh parsley and serve immediately.