Scalloped Chicken

Ingredients (10)

• 1/2 loaf white bread, cubed
• 1-1/2 cups cracker crumbs, divided
• 2 cups chicken broth
• 3 large eggs, lightly beaten
• 1 teaspoon salt
• 3/4 cup diced celery
• 2 tablespoons chopped onion
• 3 cups cubed cooked chicken
• 1 can (8 ounces) sliced mushroom, drained
• 1 tablespoon butter