Step 1

Preheat the oven to 350 degrees F.

Step 2

Grease two separate 8-inch square baking dishes.

Step 3

In a large bowl combine the cooked chicken, frozen vegetables, milk, cream of celery soup, cream of chicken soup, onion, butter, salt, and pepper.

Step 4

Add the cooked noodles and stir to combine.

Step 5

Transfer the mixture to the greased baking dishes.

Step 6

Cover the dishes and bake for about 30 minutes.

Step 7

Uncover and continue to bake until heated through, about 10-15 minutes.

Step 8

Serve hot!