Holiday vegetable stuffing

Ingredients

• 2 tablespoons butter
• 2 cups sliced mushrooms
• 2 medium carrots, chopped
• 1 medium onion, chopped
• 1-3/4 cups Swanson's Vegetable Broth (regular or certified organic)
• 1 can (8 ounces) sliced water chestnuts, drained
• 2 cups coarsely chopped fresh spinach leaves
• 4 cups Pepperidge Farm's Herb Seasoned Stuffing