Poppy seed chicken and rice bake features tender chicken in a creamy sauce topped with poppy seed-laced buttery crackers. This protein-rich family casserole is a Southern comfort classic that's always a crowd favorite.
Preheat your oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish.
Bring a pot of salted water to a gentle simmer and poach the chicken breasts over medium-low heat for 12–15 minutes until just cooked through; drain and shred or chop.
In a large mixing bowl, combine cooked rice, sour cream, cream of chicken soup, garlic powder, onion powder, salt, and pepper. Fold in the shredded chicken until evenly mixed.
Spread the mixture evenly into the prepared baking dish, smoothing the top with a spatula.
In a separate bowl, melt the butter, then stir in the crushed crackers and poppy seeds to coat. Scatter this mixture evenly over the casserole.
Bake uncovered in the center of the oven for 30–35 minutes, or until bubbly at the edges and the cracker topping is golden brown.
Allow the casserole to cool slightly for at least 10 minutes before slicing and serving for best texture.