Cook the Pasta: Bring a large pot of salted water to a vigorous boil. Add the rotini and cook according to the package directions until al dente, usually about 8-10 minutes. Once cooked, drain the pasta and set it aside, reserving a bit of pasta water in case you need it later.
Sauté the Chicken: Heat olive oil in a large skillet over medium-high heat. Add the diced chicken breast, and season with Cajun seasoning, garlic powder, salt, and black pepper. Cook for approximately 5-7 minutes, stirring often, until the chicken is juicy, golden brown, and cooked through.
Add the Vegetables: Reduce the heat to medium. Add the minced garlic, diced red bell pepper, and halved cherry tomatoes to the skillet. Sauté for an additional 3-4 minutes until the bell pepper is tender and the tomatoes soften, releasing their juices.
Create the Creamy Sauce: Pour in the heavy cream while stirring to combine with the chicken and vegetables. Allow the mixture to simmer for about 2-3 minutes, letting the sauce thicken slightly—this will enhance the flavors beautifully.
Combine Pasta and Sauce: Add the drained rotini into the skillet with the creamy sauce. Toss everything together until the pasta is evenly coated. Gradually fold in the grated Parmesan cheese, stirring continuously until the cheese melts and incorporates into the sauce. If the sauce seems too thick, add a splash of the reserved pasta water to loosen it up.
Final Seasoning: Taste your dish and adjust the seasoning with additional salt or black pepper as desired.
Serve: Once well mixed, remove the skillet from heat. Garnish with a generous sprinkle of fresh chopped parsley before serving.
Notes
Serve with crusty garlic bread for a complete meal.