Ingredients:

8 oz Ronzoni® Rings
3/4 cup onion, chopped
2 Tbsps butter
1 1/2 cups cooked ham, cubed
1 can (10 3/4 oz.) condensed cream of mushroom soup
8 oz sour cream
1 1/2 cups shredded Swiss cheese
2 each eggs
1/4 cup milk
3 tsps Dijon mustard
2 oz canned French fried onions

Cooking Directions:

1.  Prepare pasta according to package direction; drain.  Preheat oven to 350º F. 

2.  Meanwhile, in a small skillet, over medium heat, cook onion in butter until tender. 

3.  In a large bowl, combine all ingredients except French-fried onions; mix well. Spoon into greased 11 x 17-inch baking dish.

4.  Cover; bake 35 minutes or until hot and bubbly. Uncover; top with French-fried onions. Bake 5 minutes longer. Let stand 10 minutes.