Recipe: Causa rellena (Peruvian layered potato dish)

Ingredients: Mashed potato: 2 lbs Yukon gold yellow potatoes 1⁄2 cup oil 1⁄4 cup lime or lemon juice 2 -3 tablespoons yellow hot pepper paste salt and pepper to taste Filling: ½ cup of yellow onion, chopped ¼ cup of red sweet peppers, diced ¼ cup of celery, chopped 2 tablespoons of parsley, chopped 1