Cook pasta until al dente, drain but do not rinse. set aside
Lightly season the chicken and shrimp (separately) with the cajun seasoning.
Heat oil in a large pot on medium heat and cook the chicken until cooked through. Set aside.
Add the shrimp to the same pan and cook on both sides until they are opaque (about 3-5 minutes). Remove from heat and set aside.
Add andouille sausage and brown on both sides.
Still in the same pan, add onion, garlic, and bay leaves and cook until the onion is translucent.
Add the chicken, diced tomato, red bell peppers, green bell peppers, tomato sauce, red chili flakes, thyme, oregano, cajun seasoning, chicken broth, salt, and pepper.
Bring to a boil, then stir in the shrimp and pasta. Leave to get heated through for 1-2 minutes.
Garnish with parsley if desired.