Cheesy Broccoli Chicken Rice Casserole Bake

Why You’ll Love This Recipe

• Uses simple, shortcut ingredients (rotisserie chicken and microwave rice) but tastes cozy and homemade.
• One dish, family-friendly flavors, and plenty of cheesy comfort in every bite.
• Frozen broccoli goes straight in—no chopping, no pre-cooking.
• Flexible: easy to swap the soup, cheese, or add extra veggies based on what you have.

Grocery List

• Produce: (Optional) parsley or chives for serving
• Dairy: sharp cheddar cheese (8 oz block or pre-shredded, about 2 cups), milk
• Pantry: 2 microwave rice pouches (8.8 oz each), 1 can condensed cream of chicken soup (10.5 oz) or cream of mushroom, crispy fried onions (optional), kosher salt, black pepper, garlic powder
• Prepared/Freezer: rotisserie chicken, frozen broccoli florets

Full Ingredients

Casserole

• Microwave rice: 2 (8.8 oz) pouches microwave-ready cooked rice (jasmine, basmati, or long grain), prepared according to package directions (about 4 cups cooked)
• Rotisserie chicken: 3 cups shredded (about 12 oz), skin removed
• Frozen broccoli: 3 cups frozen broccoli florets (do not thaw)
• Condensed soup: 1 (10.5 oz) can condensed cream of chicken soup (or cream of mushroom)
• Milk: 1/2 cup (whole milk is best, but any milk works)
• Cheddar cheese: 2 cups shredded sharp cheddar (about 8 oz), divided (1 1/2 cups in the mix, 1/2 cup on top)
• Kosher salt: 1/2 teaspoon
• Black pepper: 1/4 teaspoon
• Garlic powder: 1/2 teaspoon

Optional Topping

• Crispy fried onions: 1 cup (adds crunch and a savory finish)
• Fresh herbs (optional): 1 tablespoon chopped parsley or chives, for serving

Step-by-Step Instructions

Step 1: Preheat the oven and prep the baking dish

Preheat your oven to 375°F. Lightly grease a 9×13-inch baking dish with butter or nonstick spray.

This helps prevent sticking and makes cleanup much easier.

Step 2: Heat the rice

Microwave the rice pouches according to the package directions (typically 90 seconds per pouch). Carefully open the pouches and fluff the rice with a fork so it mixes evenly into the casserole.

Step 3: Mix the casserole base

In a large mixing bowl, combine the hot rice, 3 cups shredded rotisserie chicken, 3 cups frozen broccoli, the condensed soup, and 1/2 cup milk.

Add 1 1/2 cups of the shredded cheddar, plus 1/2 tsp kosher salt, 1/4 tsp black pepper, and 1/2 tsp garlic powder. Stir until everything is well combined and the soup is evenly distributed.

Note: The broccoli can go in frozen. It will cook perfectly as the casserole bakes.

Step 4: Assemble and add the cheese topping

Spoon the mixture into the prepared baking dish and spread it into an even layer. Sprinkle the remaining 1/2 cup cheddar evenly over the top.

Step 5: Bake until hot and bubbly

Bake uncovered for 25 minutes, or until the edges are bubbling and the center is hot.

If you like to be precise, the center should register about 165°F on an instant-read thermometer.

Step 6: Add crispy onions (optional) and finish baking

If using crispy fried onions, sprinkle 1 cup over the top and return the dish to the oven for 5 minutes, just until the onions look toasted and the casserole is bubbling again.

This timing helps the onions stay crunchy instead of over-browning.

Step 7: Rest, garnish, and serve

Let the casserole rest for 5 minutes before serving. This helps it set so it scoops neatly and the sauce thickens slightly.

If you’d like, finish with a small sprinkle of chopped parsley or chives for a fresh pop of color.

Pro Tips

• Shred your own cheddar if you can: Block cheese melts smoother than pre-shredded (which often contains anti-caking agents).
• Keep the broccoli frozen: Thawed broccoli can turn soft and watery; frozen florets cook up tender-crisp in the casserole.
• Adjust creaminess to taste: For a looser, creamier casserole, increase milk to 3/4 cup. For thicker, stick with 1/2 cup.
• Even baking: Spread the mixture flat and evenly in the dish so the center heats through at the same time as the edges.
• Prevent over-browning: If the top is browning faster than you like, loosely tent with foil for the last 10 minutes.

Variations

• “Extra veggie” version: Add 1 cup frozen peas, corn, or diced mixed vegetables (stir in with the broccoli).
• Mushroom lover’s version: Use cream of mushroom soup and add 1 cup sliced sautéed mushrooms for deeper flavor.
• Spicy kick: Stir in 1/4 tsp cayenne or 1–2 tbsp hot sauce, and swap half the cheddar for pepper jack.

Storage & Make-Ahead

Refrigerate: Cool leftovers, then cover and refrigerate for up to 4 days.

Reheat: Microwave individual portions for 2–3 minutes, stirring halfway through, or reheat in a 350°F oven (covered) for about 15–20 minutes until hot. Add crispy onions after reheating to keep them crunchy.

Make-ahead: Assemble the casserole (without crispy onions), cover tightly, and refrigerate up to 24 hours. Bake at 375°F for 30–35 minutes (since it’s cold), then add onions for the last 5 minutes.

Freezing: Freeze baked or unbaked (without crispy onions) tightly wrapped for up to 2 months. Thaw overnight in the fridge, then bake at 375°F until bubbling and hot in the center (typically 30–40 minutes, depending on thickness and starting temperature). Add crispy onions at the end.

Nutrition (per serving)

Approximate (based on 6 servings, using cream of chicken soup, whole milk, and sharp cheddar): 480 calories, 34 g protein, 33 g carbs, 23 g fat, 3 g fiber, 980 mg sodium.