Preheat your oven to 375°F (190°C). Heat olive oil in a skillet over medium heat. Add the chorizo and cook, breaking it into small pieces, until browned and fully cooked. Add the diced onion and jalapeño to the skillet and cook for 2-3 minutes, or until softened. Remove from heat. In an oven-safe dish, layer the cooked chorizo mixture with the shredded cheeses. Bake for 10-15 minutes, or until the cheese is fully melted and bubbling. Remove from the oven and garnish with fresh cilantro. Serve immediately with warm tortillas or tortilla chips for dipping.
