Start by cubing the Velveeta cheese and shredding the pepper jack cheese. Dice the onion and slice the jalapeños. Having everything prepped and ready to go makes the cooking process seamless.
In a skillet over medium heat, cook the Mexican chorizo until it’s browned and fully cooked through. Use a spatula to break it up into smaller pieces as it cooks. Once done, remove from heat and set aside.
In your cast iron skillet, combine the cubed Velveeta cheese, shredded pepper jack cheese, drained Rotel tomatoes and chiles, cooked chorizo, diced onion, and sliced jalapeños. Mix everything together until well combined.
Preheat your smoker or grill to 225°F. Place the cast iron skillet with the queso mixture directly on the grill grates. Close the lid and let it smoke for about 30-40 minutes, stirring occasionally, until the cheeses are fully melted and the mixture is bubbly.
Once your Smoked Queso is ready, carefully remove it from the grill. Serve it warm with tortilla chips, fresh veggies, or even drizzled over tacos. Enjoy the smoky, cheesy goodness!