01 - If using meat, heat a skillet over medium heat and cook the ground beef or sausage until fully browned throughout. Drain off any excess fat and set aside.
02 - Place the cubed processed cheese and the entire can of Rotel diced tomatoes with green chilies (including the liquid) into a large saucepan or slow cooker.
03 - Stir in the cooked meat if using, along with the garlic powder and onion powder. Mix gently to distribute the seasonings evenly.
04 - Heat over medium-low, stirring frequently, until the cheese is completely melted and the dip is smooth and creamy, approximately 8 to 10 minutes.
05 - Transfer to a serving bowl and serve hot with tortilla chips, crackers, or fresh vegetable sticks.