Veggie Turkey Casserole

3 cups cubed cooked turkey
2 cups frozen mixed vegetables
2 cups frozen broccoli florets
1 can (10-3/4 ounces) condensed cream of chicken soup, undiluted
1 can (10-3/4 ounces) condensed cream of mushroom soup, undiluted
1/2 cup chopped onion
1/4 teaspoon garlic powder
1/4 teaspoon celery seed

In a large bowl, combine all the ingredients. Transfer to a greased 11-in. x 7-in. x 2-in. baking dish. Bake, uncovered, at 350° for 30-35 minutes or until heated through. Stir before serving. Makes 4 servings.