Cajun Chicken Fettuccine

I found this in a magazine and turns out, hubby and I both really liked it...very rare. The kids tolerated it, (that is pretty good for my kids) until the heat caught up with them...except Laser Boy, ever since the Tabasco fiasco the kid can take just about anything, and he had three helpings. Sorry no picture..it was pretty, and went pretty fast.

8oz uncooked fettuccine (I used penne)
1 large sweet onion halved and sliced
1 med green pepper cut into 1/4 in. strips
2 T olive oil
2 C cubed cooked chicken
4 tsp Cajun seasoning (use your own judgement)
1 tsp minced garlic (I used about 2)
1 jar (17 oz) Alfredo sauce
1/2 C spaghetti sauce
2 C shredded mozzarella cheese
1/2 C grated Parmesan cheese (I didn't have any so I left it out)

Cook fettuccine according to package directions. Meanwhile, in a large skillet, saute onion and peppers in oil until tender. Add chicken,Cajun and garlic; heat through. Add drained fettuccine. Stir in Alfredo and spaghetti sauces.

Transfer to a greased 13X9 baking dish. Sprinkle with cheeses. Cover and bake at 375 for 15 minutes. Uncover; bake 10-15 min longer or until golden brown.

Note: I used the frozen pepper/onion mix so it all went together really quick. When I have more time I'd like to try it from scratch, including the spaghetti and Alfredo...I have a spaghetti recipe that I think would work great, but I've never tried Alfredo sauce.