Preheat oven to 400 degrees. Line a rimmed baking sheet with aluminum foil. Place bacon in a single layer and cook for 15-20 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!