Preheat your smoker to 225°F (107°C).
In a large aluminum pan, layer the cubed Velveeta, shredded cheddar, and Monterey Jack cheese.
Add the Ro-Tel tomatoes (undrained), diced onion, jalapeños, and green chilies on top of the cheese.
Pour the heavy cream over the ingredients and sprinkle with smoked paprika, chipotle powder, and cumin.
Place the pan in the smoker and smoke for 1 hour, stirring every 15 minutes to ensure even melting and smoking.
The smokedqueso recipe is ready when all cheese is completely melted and the mixture has a smooth, creamy consistency.