Place chicken and Cajun seasoning in a bowl and toss to coat.
In a large skillet over medium-high heat, sauté chicken in butter until chicken is tender, about 5 to 7 minutes.
Reduce heat add heavy cream, tomatoes, basil, salt, garlic, black pepper, and heat through.
Pour over hot linguine and toss with parmesan cheese and green onions.
serve and enjoy!