1. Cook tortellini according to the package directsion. Drain and set aside.
2. Meanwhile in large skillet, melt butter over medium heat. Add sausage and cook for about 5 minutes.
3. Add peppers, onion and spinach. Cook until peppers become tender (about 4 minutes).
4. Add the pasta and stir to combine.
5. Season with cajun seasoning, then serve.