1. Bring a pot of water to a boil. Once boiling, add shrimp and allow to cook for two minutes. The shrimp should turn pink. Drain shrimp and rinse under cool water.
2. In a bowl, add shrimp, bell pepper and red onion. Cover with juice from 1½ limes (save the last ½ lime), lemon zest and juice and 3 tbsp olive oil. Add in Cilantro, cumin, tomatoes, salt pepper. Stir. Let sit for at least thirty minutes.
3. Top each corn tostada with MILD HASSFROZ GUACAMOLE, then add the ceviche.