1. Mix together in large bowl both cheeses and mayonnaise.
2. Fold in green onions and tomato.
3. Mix ingredients together well.
4. Fold in bacon.
5. In an ungreased 8 x 9 baking pan spread mixture evenly.
6. Place in a preheated 350 degree oven until cheese is completely melted.
7. Serve warm with crackers or French bread pieces