Pumpkin Bars with Cream Cheese Frosting

Ingredients

• 4 eggs
• 1 1/2 cups granulated sugar
• 1 cup vegetable oil
• 15-ounce can pumpkin
• 2 cups sifted all-purpose flour
• 2 teaspoons baking powder
• 2 teaspoons ground cinnamon
• 1/2 teaspoon pumpkin pie spice
• 1 teaspoon salt
• 1 teaspoon baking soda
• 1/2 cup chopped pecans (optional)