Brown the ground beef in a large skillet over medium-high heat, seasoning it with taco seasoning if desired. Stir frequently until fully cooked.
While the beef is cooking, cut the Velveeta into small cubes for easier melting.
Once the beef is browned, drain any excess grease. Add the Velveeta cubes and the can of Rotel (undrained) to the skillet. Mix thoroughly.
Continue heating over medium heat, stirring occasionally, until the cheese has completely melted and the mixture is smooth and creamy.
Serve immediately, keeping the dip warm to maintain its silky texture.