Heat a skillet over medium heat and add the olive oil and diced chicken. Season with garlic salt and pepper.
In a large bowl or in the casserole dish, add the cooked rice, cooked chicken, cooked broccoli, cream of chicken soup, milk, and eggs. Mix until well combined.
Top with shredded cheese if desired.
Bake at 350°F for 20-30 minutes until bubbly.
Notes
Meal Prep:
This casserole works well for meal prep. Assemble it as directed but do not bake. Cover tightly with foil and freeze.
When ready to serve, thaw in the refrigerator, then bake as directed.
Tips:
Make sure the broccoli is fully cooked and well drained before adding it to the casserole to prevent excess moisture.
Stir the rice mixture thoroughly so the liquid is evenly distributed, which helps the rice cook evenly and become tender.
Let the casserole rest for 5–10 minutes after baking so it sets and is easier to serve.
Storage & Make Ahead:
Store leftovers covered in the refrigerator for up to 3 days. Reheat in the microwave or oven until warmed through.
You can assemble the casserole ahead of time, cover, and refrigerate for up to 24 hours before baking.