1. Prepare the Chicken and Shrimp:

1. Pat chicken and shrimp dry with a paper towel.
2. Season both with salt, black pepper, garlic powder, and smoked paprika.

2. Cook the Chicken:

1. Heat 1 tablespoon olive oil in a large skillet over medium-high heat.
2. Add chicken pieces and cook for 5–7 minutes, stirring occasionally, until golden brown and cooked through.
3. Remove from the skillet and set aside.

3. Cook the Shrimp:

1. In the same skillet, melt 1 tablespoon butter.
2. Add shrimp and cook for 2 minutes per side until pink and opaque.
3. Remove shrimp from the skillet and set aside.

4. Make the Garlic Butter Sauce:

1. Melt 1 tablespoon butter in the skillet.
2. Add garlic and red pepper flakes, cooking for 30 seconds until fragrant.
3. Pour in chicken broth (or white wine) and scrape the bottom of the pan.
4. Stir in lemon juice, salt, black pepper, and Italian seasoning.
5. If using, add heavy cream for a creamy sauce. Simmer for 2 minutes.

5. Combine and Serve:

1. Return chicken and shrimp to the skillet, tossing in the sauce.
2. Sprinkle with fresh parsley and adjust seasoning if needed.
3. Serve immediately over pasta, rice, or roasted vegetables.