Place processed cheese spread in a microwave-safe bowl. Microwave on high in 2 minute increments (stirring at each pause) until the cheese spread is melted.
While the processed cheese spread is melting, brown sausage in a small skillet.
Drain well.
Place broccoli in a microwave-safe bowl, cover, and microwave on high for 5 minutes.
In a large mixing bowl, combine melted cheese, sausage, broccoli, and diced tomatoes. Stir well before serving.
