Sausage & Peppers Baked Ziti

I found this recipe on page 36 of the April 2013 issue of Eating Well magazine.
The recipe was quick, easy, and make 4 huge portions.

ingredients
8oz whole wheat penne or ziti (or whatever kind of pasta you have)
16oz bag frozen pepper and onion mix
3 links chicken sausage, sliced
2C marinara sauce
1 tsp garlic salt
1 tsp dried oregano
1/2C plain yogurt (I used Old Chatham Sheepherding Company Sheep's Milk Yogurt)
3/4C Italian blend shredded cheese

directions

1. Cook pasta according to package directions. Drain.
2. Preheat oven to broil.
3. Heat a large skillet over medium-high heat.
4. Add frozen vegetables and sausage; cook, stirring occasionally until most of the liquid from the vegetables has evaporated (about 15-20 minutes).
5. Stir tomato sauce, garlic salt, oregano, and salt into the skillet.
6. Reduce heat to medium-low, stir in yogurt and pasta. 
7. Cook, stirring, until heated through, about 2 minutes.
8. Transfer contents of the skillet to a casserole dish.
9. Top with shredded cheese.
10. Place casserole dish in the oven for 2 minutes.
11. Enjoy!