Sauté the Onion and Chorizo:In a skillet, heat a little oil over medium heat. Add the diced onion and chorizo. Cook for about 2 minutes, until the onion is softened and the chorizo is lightly browned.Cook the Spinach:In a separate pan, add the fresh spinach. Season with a pinch of salt and pepper. Sauté until wilted, about 2-3 minutes.Combine Ingredients:In a large bowl, mix together the sautéed chorizo and onion, cooked spinach, and the additional ingredients. Stir until well combined.Transfer to Baking Dish:Pour the mixture into an 8x8-inch baking dish, spreading it evenly.Bake:Preheat your oven to 375°F (190°C) and bake for 20 minutes, or until heated through.Let cool slightly before cutting it. Enjoy.