Chicken and Rice Pot Pie

Instructions

Adjust oven rack to middle position and heat oven to 400 degrees. Cut puff pastry in half, then cut each half into thirds. Bake on parchment-lined baking sheet until golden brown and crisp, about 15 minutes.
Meanwhile, pat chicken dry with paper towels and season with salt and pepper. Melt 1 tablespoon butter in large skillet over medium-high heat. Cook half of chicken until no longer pink, 1 to 2 minutes per side; cut into cubes and transfer to medium bowl. Repeat with additional 1 tablespoon butter and remaining chicken.
Add flour and remaining butter to empty skillet and cook until golden, 1 to 2 minutes. Stir in rice, broth, and cream and bring to boil. Reduce heat to medium and simmer, covered, until rice is nearly tender, 3 to 5 minutes. Stir in peas and carrots, scallions, and chicken, along with any accumulated juices. Simmer until sauce is thickened, about 3 minutes. Season with salt and pepper. Top with puff pastry. Serve.