- Start by preheating your oven to 350°F (175°C). This will prepare the perfect environment for your casserole to bake evenly and beautifully. 
- In a skillet, season the chicken breasts with olive oil, salt, and pepper. Cook over medium heat until they are golden and cooked through, about 6-7 minutes per side. Once done, allow them to rest briefly before shredding the meat into bite-sized pieces. 
- In a large mixing bowl, combine the Greek yogurt, mayonnaise, Dijon mustard, minced garlic, hot sauce, paprika, and a pinch of salt and pepper. Stir until you have a smooth, creamy mixture. 
- Toss the shredded chicken and crispy bacon bits into the mixture. Add the grated cheddar cheese, chopped chives, and your choice of nuts. Fold everything together gently until just combined. 
- Transfer the mixture into a greased casserole dish. Spread it evenly. Bake in the preheated oven for 25-30 minutes, or until bubbly and golden on top. 
- Once cooked, let it cool for a few minutes. This allows the flavors to meld. Serve warm, and enjoy the deliciousness.