Preheat the oven to 375F. Slice the baguette in half lengthwise.

Mix the softened butter and minced garlic together, then spread evenly over both halves of the baguette. Bake for 5-7 minutes until lightly toasted.

In a medium bowl, combine the shredded chicken and Alfredo sauce until well mixed.

Spread the creamy poultry mixture evenly across the toasted baguette halves.

Sprinkle the mozzarella cheese, Parmesan cheese, and red pepper flakes over the top.

Bake for another 10-15 minutes until the cheese is melted, bubbling, and golden brown. Slice into pieces and serve immediately.