Step 1: Prepare the Chicken

1. Toss chicken pieces with Cajun seasoning until evenly coated.
2. Heat olive oil in a large skillet over medium-high heat.
3. Add chicken and cook for 4-5 minutes until browned. Remove and set aside.

Step 2: Cook the Vegetables

1. Reduce heat to medium and melt butter in the same skillet.
2. Add onion and bell pepper, sauté for about 3 minutes until softened.
3. Stir in garlic and cook for another 30 seconds until fragrant.
4. Add cherry tomatoes and cook for an additional 2 minutes until softened.

Step 3: Cook the Orzo

1. Pour in the orzo and stir to coat with flavors.
2. Add chicken broth and bring to a gentle simmer.
3. Cover and cook for about 10 minutes, stirring occasionally, until orzo is tender and most of the liquid is absorbed.

Step 4: Combine Everything

1. Return cooked chicken to the skillet and stir to combine.
2. Pour in heavy cream, Parmesan, salt, black pepper, and red pepper flakes (if using).
3. Stir until cheese melts and sauce becomes creamy.
4. Fold in fresh parsley and spinach (if using), allowing greens to wilt slightly.

Step 5: Serve and Enjoy

1. Remove from heat and let sit for a couple of minutes before serving.
2. Garnish with extra Parmesan and parsley if desired.
3. Serve warm and enjoy!