Preheat oven to 400 degrees. Line a rimmed baking sheet with aluminum foil. Place bacon in a single layer and cook for 30 minutes or until crispy. Take out of the oven and allow to cool. Once cool crumble the bacon and set aside.
Reduce oven temperature to 350 degrees.
In a medium bowl combine mayonnaise, sour cream, cream cheese, cheddar cheese and seasonings.
Spread into an 8 x 8 pan greased with nonstick cooking spray.
Bake for 15-20 minutes or until warmed through.
Top with tomatoes, lettuce and crumbled bacon.
Serve immediately with sliced baguette for serving