This is another Weight Watcher's recipe. I really loved this one. So you should most def try it :)
What you'll need:
12 oz uncooked macaroni, (I used Penne)
1/2 cup(s) fat-free sour cream
12 oz fat-free evaporated milk
8 oz low-fat cheddar or colby cheese, shredded
1 Tbsp Dijon mustard
1/4 tsp table salt
1/4 tsp black pepper
2 Tbsp dried bread crumbs
2 Tbsp grated low fat cheese
Cook pasta without added fat or salt; drain and transfer to a large bowl. While pasta is still hot, stir in sour cream; set aside.
Heat milk in a small saucepan over medium heat until tiny bubbles appear just around the edges.
Reduce heat to low, add cheese and simmer until cheese melts, stirring constantly with a wire whisk, about 2 minutes; remove from heat and stir in mustard, salt, and pepper. Add cheese mixture to pasta; mix well. Transfer to a 3-quart casserole dish.
Combine bread crumbs and Parmesan cheese; sprinkle over pasta.
Bake at 350 until top is golden, about 30 minutes.