Preheat the oven to 350 degrees F.
Heat a large skillet over medium heat and remove the chorizo from the casing. Cook the chorizo, breaking it up with a spoon and stirring occasionally until it begins to brown, about 5 minutes. Add the onion, carrot, celery and garlic to the chorizo and cook, stirring occasionally, until the vegetables have browned, about 10 minutes. Add the crumbled cornbread and cilantro and gradually pour in enough of the stock so the stuffing is not too dry but at the same time not too wet. Stir gently. Season to taste with salt and pepper.
Butter a casserole dish and spread the stuffing in an even layer. Bake until it’s heated through and lightly browned on top, about 20-25 minutes. Garnish with the cilantro and queso fresco.