1. 1. Season the chicken breast with salt and pepper. Cook the chicken in a skillet until fully cooked.

2. 2. In a separate skillet, cook the bacon until crispy. Set aside on paper towels to drain excess grease.

3. 3. In a saucepan, melt butter over medium heat. Whisk in flour until a roux forms. Slowly whisk in milk until smooth and thickened to make a cheese sauce.

4. 4. Add American cheese to the sauce and stir until melted and combined.

5. 5. Toast the hamburger buns or whole grain bread slices.

6. 6. Assemble the sandwich by placing the cheesy chicken on the bottom bun, topping with bacon slices, and adding another layer of cheese sauce. Close the sandwich with the top bun or bread slice.

7. 7. Serve hot and enjoy!