Season chicken breasts with garlic powder, salt, and black pepper. Let them rest at room temperature for 10 minutes to absorb the seasonings.
In a large skillet over medium heat, cook bacon strips until crispy, about 6-8 minutes. Remove and drain on paper towels, reserving 1 tablespoon of bacon fat.
Heat a grill pan or skillet with the reserved bacon fat over medium-high heat. Cook chicken breasts for 6-7 minutes per side until internal temperature reaches 165°F. Let rest for 5 minutes, then slice.
Slice croissants horizontally and lightly toast them. Brush the inside with softened butter for extra richness and flavor.
Layer the bottom half of each croissant with lettuce, sliced chicken, crispy bacon, and fresh herbs. Top with the other croissant half and serve immediately.
Notes
For added flavor, try marinating the chicken in herbs overnight.
This recipe is best served fresh but can be prepared in advance and assembled before serving.
Feel free to customize with additional toppings like avocado or tomato.