This Chicken Broccoli and Rice Casserole combines tender chicken, fluffy long-grain rice, fresh broccoli, and a creamy homemade béchamel with mascarpone, mozzarella, and cheddar. Instead of canned cream soup, the sauce is made from scratch and finished with a crisp Parmigiano-panko topping and a touch of lemon zest
Prep Time10 minutesmins
Cook Time50 minutesmins
Total Time1 hourhr
Course: Dinner, Main Course
Cuisine: Italian/ American
Keyword: casserole dish, chicken and rice, chicken broccoli and rice casserole
Pour in the chicken broth, season lightly with salt, and bring to a boil.
Reduce heat, cover, and simmer 10 minutes.
Stir in the broccoli, cover, and cook 10 more minutes, until rice is tender.
Remove from heat and fluff.
Make the Béchamel
Melt butter in a saucepan over medium heat.
Whisk in the flour; cook 1–2 minutes to form a smooth roux.
Slowly add the warm milk, whisking constantly.
Stir in salt, pepper, and nutmeg.
Continue cooking until thickened, about 5–7 minutes.
Assemble the Casserole
Preheat oven to 375°F (190°C).
In a large bowl, combine rice-broccoli mixture, chicken, Italian seasoning, béchamel, mascarpone or sour cream, and ½ cup mozzarella and ½ cup cheddar cheese. Add ¼-½ cup milk to soften the mixture, if needed. Season with salt and pepper.
Transfer to a greased 9×13-inch baking dish.
Top with the remaining mozzarella (½ cup) and cheddar cheese (1 cup).
Prepare the Topping
In a small bowl, mix panko, Parmigiano, olive oil, lemon zest (if using), and kosher salt.
Sprinkle evenly over the casserole.
Bake
Bake uncovered for 22–28 minutes, until bubbly and golden. Serve hot!
Notes
Toast the rice briefly in olive oil before adding the broth to build flavor and help the grains stay fluffy.
Cut the broccoli into small, even pieces so it cooks at the same rate as the rice and distributes throughout the casserole.
Use warm milk for the béchamel and add it gradually while whisking to create a smooth sauce.
Grate the cheese fresh when possible because it melts more smoothly than many pre-shredded varieties.
Let the casserole rest for about 5 minutes before serving so the creamy filling can settle and the portions hold together.