Chicken Cordon Bleu Casserole

This recipe came from Studio 5. I saw it and have been craving it ever since. Turns out, it is delicious. The only problem I ran into was what to serve it with... I decided on some broccoli for some greenery... yum.

{ingredients}
3 c. chicken- cooked and cubed
2 c. cubed ham
1 1/2 c. shredded cheddar cheese
1 1/2 c. (12 oz) half and half
1/2 c. chopped onion
2 T. butter
3 T. flour

Topping: (mix together following)
1/2 c. dried bread crumbs
1 tsp melt butter
1/2 c. grated Swiss cheese

{directions}
1. Saute onions in butter, add flour. Stir half and half and bring to a boil until thick, stirring constantly. In a separate bowl, mix together chicken, ham and cheese. Pour sauce over and mix well.
2. Pour into a 9X13 pan.
3. Sprinkle with topping. Bake at 350 degrees for 30 minutes.

**If freezing:
Step 2: place in a disposable pan, sprinkle with topping. Cover with foil and freeze.