Cut the bread into 1/3-1/2 inch thick slices, leaving un-toasted if fresh (feel free to toast it for a little crunch). Spread both sides of the bread with Boursin cheese, then layer in basil, rotisserie chicken, cucumber, and roasted red peppers.
For a warm sandwich, melt a small pat of butter or olive oil in a cast iron skillet over medium low heat. Add the sandwich and cook 1-2 minutes per side, till golden brown and crispy.
Notes
Gluten free - Use your favorite gluten free bread like Canyon Bakehouse or Bread SRSLY.
Dairy free - Use dairy free Boursin cheese.
Protein - This sandwich would also be great with thick-sliced turkey or leftover chicken breast.
Boursin cheese - Substitute this for goat cheese or cream cheese, if desired. Boursin does give this extra flavor, so a garlic or herb blend in either of these would be ideal.