Ecuadorian Shrimp Ceviche

Ingredients

• 500 gr. (1.1 lbs) raw shrimps or prawns
• 2 tomatoes chopped in small cubes
• 1 red onion, julienned
• Fresh cilantro
• 1/2 red bell pepper chopped in small squares
• 1/2 green bell pepper chopped in small squares
• 3 limes or lemons
• 1 tablespoon of ketchup sauce
• 1/2 tablespoon mustard
• Salt to taste
• Pepper to taste