Step 1

Preheat oven to 375º F.

Step 2

In a large bowl, mix together mayonnaise, sour cream and cream cheese until combined.

Step 3

Mix in bacon, 1 1/2 cups cheddar cheese, tomatoes and onion, and stir together well. Pour mixture into a large baking dish and sprinkle remaining cheese over the top.

Step 4

Place in oven and bake for 18-20 minutes, or until cheese is melted and dip is bubbly.

Step 5

Remove from oven and top with more crumbled bacon, diced tomatoes and chopped lettuce, then serve hot, with chips or toasted slices of bread.