Jicama Ceviche

Ingredients

• 2 cups jicama sliced into cubes
• 3 lemons
• 2 tomatoes seeded, finely chopped
• 1/2 cup onion finely chopped
• 3 tablespoons coriander finely chopped
• 3 chili pepper jalapeno, pickled, chopped
• 6 olives finely chopped
• 3 tablespoons ketchup
• 2 tablespoons worcestershire sauce
• 2 tablespoons olive oil
• salt as desired
• pepper as desired
• 5 pita bread rounds
• 1 avocado sliced