Add the cubed velveeta, tomatoes with chiles, green chiles, colby jack, pepper jack, cheddar, cream cheese, onion powder, garlic, half and half, and liquid smoke. Stir to combine.
1 lb velveeta cheese, 1 10 oz can diced tomatoes with green chiles, 6 oz shredded colby jack cheese, 1 cup shredded cheddar cheese, 2 oz shredded pepper jack cheese, 1 8 oz block cream cheese, 1 4 oz can diced mild green chiles, 1/2 tsp onion powder, 1/2 cup half & half, 2-3 garlic cloves, 1/2 tsp liquid smoke