Sprinkle 2 teaspoons blackening seasoning evenly over chicken breast.
In large skillet, melt 2 tablespoons butter over medium-high heat. Add chicken and cook for 2-3 minutes per side, or until chicken is done. Remove from heat, and cool. Cut chicken into thin strips; set aside.
In a large skillet, melt remaining 2 tablespoons butter over medium heat. Add garlic and shallot, and cook for two minutes. Stir in flour; cook for two minutes, stirring constantly. Gradually whisk in wine and milk. Cook, whisking constantly, for about 4-5 minutes, or until thickened. Stir in basil and remaining 1 tablespoon blackening seasoning. remove from heat.
Spread cream mixture evenly over prepared unbaked crust. Sprinkle with 1 cup mozzarella cheese. Top evenly with spinach, chicken strips, bacon, remaining 1/2 cup mozzarella cheese, and Parmesan cheese. Bake for 15-20 minutes, or until lightly browned. Cut into wedges to serve.