Pumpkin Cake Roll

Ingredients

• 3 eggs
• 1 c. granulated sugar
• 2/3 c. canned pumpkin
• 1 tsp. lemon juice
• 3/4 c. all-purpose flour
• 2 tsp. ground cinnamon
• 1 tsp. baking powder
• 1 tsp. ground ginger
• 1/2 tsp. salt
• 1/2 tsp. ground nutmeg
• 1 c. finely chopped walnuts
• 1 c. sifted powdered sugar
• 2 (3 oz.) pkg. cream cheese
• 1/4 c. margarine or butter
• 1/2 tsp. vanilla