Prepare the Ingredients: Take the cream cheese out of the fridge 20 minutes before cooking to soften. Season chicken breasts with garlic powder, salt, and pepper.
Cook the Chicken: Heat butter and olive oil in a large skillet over medium heat. Add chicken breasts and sear for 5-6 minutes per side until golden brown. Remove from the skillet and set aside.
Make the Sauce: In the same skillet, sauté chopped onion until translucent (about 3 minutes). Add minced garlic and cook for 1 more minute. Pour in chicken broth, scraping up browned bits from the skillet. Stir in softened cream cheese, Italian seasoning, and red pepper flakes. Whisk until smooth.
Combine and Cook: Return the cooked chicken to the skillet, spooning sauce over each piece. Cover and simmer on low heat for 5-7 minutes, or until the chicken is cooked through and tender.
Serve and Garnish: Sprinkle with fresh parsley and serve hot. Pair with your favorite low-carb sides like cauliflower rice or sautéed spinach.