Season the chicken. Pat the chicken thighs dry. In a bowl, mix salt, pepper, smoked paprika, garlic powder, and onion powder. Rub evenly over the thighs.
Make a quick marinade. Stir together Dijon and mayonnaise.
Coat the chicken lightly. Let it sit 10–15 minutes while you heat the pan. This helps tenderness and browning.
Heat the pan. Set a large skillet over medium-high heat.
Add olive oil. When it shimmers, add the chicken in a single layer. Don’t crowd the pan; work in batches if needed.
Sear both sides. Cook 4–5 minutes per side until well browned.
Transfer chicken to a plate. It’s okay if it’s not fully cooked yet.
Build the sauce base. Reduce heat to medium. Add butter to the skillet.
When melted, add minced garlic and cook 30 seconds until fragrant—avoid burning.
Deglaze. Pour in chicken broth and scrape up the browned bits. Simmer 2–3 minutes to reduce slightly.
Make it creamy. Stir in heavy cream, cream cheese, and Italian seasoning. Whisk until smooth and slightly thick, 2–3 minutes.
If using, add lemon juice for brightness.
Finish the chicken. Return the thighs and any juices to the pan. Spoon sauce over the top. Simmer on low 5–7 minutes until the chicken reaches an internal temperature of 165°F (74°C).
Taste and adjust. Add a pinch of salt or pepper if needed.
Sprinkle with parsley.
Portion for meal prep. Divide chicken and sauce among 4–5 containers. Add your low-carb side of choice to each container.