01 -
Toss chicken pieces with 1 tablespoon olive oil and 1 tablespoon poultry seasoning until fully coated. Heat a skillet over medium heat until shimmering, then add chicken in a single layer. Cook undisturbed for 3 minutes to form a golden crust, then stir and continue cooking for 2 to 4 minutes until cooked through and golden. Remove from heat and transfer to a bowl.
02 -
In a medium bowl, combine 1 stick melted butter, 1 tablespoon minced garlic, 1 tablespoon chopped parsley, and crushed red pepper flakes. Mix thoroughly until fragrant.
03 -
Preheat oven to 350°F and line a baking sheet with parchment paper. Spread the garlic butter mixture evenly over both bread halves, covering edges. Toast in the oven for 5 to 10 minutes until edges are golden and surface is firm.
04 -
Using the skillet previously used for chicken, melt remaining ½ stick butter over medium-low heat. Add remaining minced garlic and cook 2 to 3 minutes until fragrant without browning. Lower heat, slowly whisk in heavy cream, then add Parmesan cheese and remaining parsley. Stir continuously until cheese melts and sauce thickens, about 3 to 5 minutes, until it coats the back of a spoon.
05 -
Remove toasted bread from oven. Spread half of the Alfredo sauce evenly on both halves. Arrange cooked chicken pieces over the sauce, then sprinkle mozzarella cheese generously atop. Drizzle the remaining Alfredo sauce over the assembled ingredients.
06 -
Return bread to oven and bake for 5 minutes until mozzarella melts and bubbles slightly. Remove and cool for 2 minutes before slicing into 6 triangles. Serve immediately while cheese is stretchy and bread remains crisp.