Take the lid off the skillet, stir and make sure most of that gelatinous substance has dried up. If it hasn’t, let the cactus cook for a few more minutes until it does. Let the cactus cool slightly. In a mixing bowl, toss the cactus with the tomato, onion, jalapeño, cilantro, lime juice and salt. Like this, it can be eaten as a cactus paddle, nopal salad!