There’s something comforting about a casserole that pulls together simple pantry ingredients and turns them into a warm, cheesy centerpiece. This Cheesy Broccoli Rice Casserole does exactly that: bright, blanched broccoli, creamy cheese sauce, tender rice, and a crunchy panko topping. It’s the kind of dish that survives weeknight chaos and also stands up at a potluck or holiday table.

I keep this recipe in heavy rotation because it’s forgiving and straightforward. The technique is basic—blanch the broccoli, make a quick roux-based cheese sauce, fold in cooked rice, and bake under a golden crumb topping. Little tricks in the method make the difference between a limp bake and a casserole that’s creamy without being soupy.

Below you’ll find the exact ingredient list and step-by-step instructions I use every time I make it, plus practical tips, common mistakes, and ways to tweak the flavors for different seasons. Read once, then dive in.

Gather These Ingredients

Ingredients

5 cups broccoli florets, fresh, cut to bite-size pieces — the main vegetable; blanch to keep color and texture.
2 cups white rice, cooked — provides body and absorbs the cheese sauce; use cooked and cooled rice.
3 tbsp butter, salted — for sautéing the onion and building the roux.
1 cup onion, diced — sweetens the sauce; dice small so it softens quickly.
3 tbsp flour — forms the roux that thickens the sauce.
½ tsp garlic salt — seasoning built into the sauce.
¼ tsp pepper — controls the heat and balances richness.
2 cups milk, 2% or whole — the liquid base for the cheese sauce; whole gives a richer result.
¼ tsp dry mustard powder — brightens the cheese flavor in the sauce.
¼ tsp paprika, dried — adds subtle warmth and color.
2 oz cream cheese — for silkiness and body in the sauce.
2 cups cheddar cheese, freshly shredded, divided — the primary cheese; divide for sauce and topping.
2 tbsp butter, salted, melted — binds the panko topping and adds flavor.
½ cup panko bread crumbs — gives a crisp, light topping.
½ tsp Italian spices, dried — seasons the topping; a mix of oregano, basil and thyme works well.
1 tsp parsley, fresh chopped — a finishing garnish for color and freshness.

Cheesy Broccoli Rice Casserole, Made Easy

Preheat the oven to 350°F. Grease a 9×13-inch baking dish and set it aside.
Bring a pot of salted water to a boil. Add the 5 cups fresh broccoli florets (cut to bite-size) and blanch 1–2 minutes until bright green and just tender. Drain and immediately rinse under cold running water to stop cooking; drain well and set aside.
In a large skillet over medium-low heat, melt the 3 tbsp salted butter. Add the 1 cup diced onion and cook, stirring regularly, until the onion is soft and translucent, about 5 minutes.
Whisk into the pan: 3 tbsp flour, ½ tsp garlic salt, and ¼ tsp pepper. Cook and stir 1–2 minutes to remove the raw flour taste.
Raise the heat to medium. Slowly whisk in the 2 cups milk (while pouring) and bring to a gentle simmer. Cook, stirring frequently, 3–5 minutes until the sauce thickens and coats the back of a spoon.
Remove the pan from the heat and whisk in ¼ tsp dry mustard powder, ¼ tsp paprika, the 2 oz cream cheese, and 1½ cups of the shredded cheddar cheese. Stir until the cream cheese and cheddar are fully melted and the sauce is smooth.
In the greased baking dish, combine the cheese sauce with the 2 cups cooked white rice and the blanched broccoli. Stir gently until evenly mixed.
In a small bowl, stir together 2 tbsp melted salted butter, ½ cup panko bread crumbs, ½ tsp dried Italian spices, and the remaining ½ cup shredded cheddar cheese.
Sprinkle the panko-cheese mixture evenly over the casserole. Bake uncovered at 350°F for 30–45 minutes, until the casserole is bubbling and the topping is golden brown.
Remove from the oven, sprinkle with 1 tsp fresh chopped parsley, let rest a few minutes, then serve.

Why This Recipe Is Reliable

Every dependable casserole has a few reliable foundations and this one has them: a blanch step for the broccoli to lock in color and crisp-tender texture; a simple roux-thickened béchamel that carries the cheese without breaking; and pre-cooked rice to control moisture. Together they prevent the common pitfalls—soggy vegetables, a grainy sauce, or a watery bake.

The recipe divides the cheese so some melts into the sauce for creamy cohesion while the rest goes into the crunchy topping. That balance gives both melting richness and satisfying texture. And the seasoning is restrained: garlic salt, a hint of dry mustard, and paprika lift the dairy and let the broccoli sing.

Flavor-Forward Alternatives

Cheese swaps: Use Gruyère or Monterey Jack to change the profile—Gruyère adds nuttiness; Jack gives a milder, creamier melt.
Spice it up: Add a pinch of cayenne or a few dashes of hot sauce to the sauce for heat.
Protein boost: Stir in diced, cooked chicken or crumbled, cooked bacon for a heartier main.
Veggie plays: Mix in roasted cauliflower or mushrooms for more depth; just sauté mushrooms first to remove excess moisture.
Crunch variations: Swap panko for crushed cornflakes or gluten-free crumbs to suit dietary needs.

Gear Up: What to Grab

9×13-inch baking dish (greased)
Large pot for blanching broccoli
Colander or mesh strainer
Large skillet for the sauce
Whisk and wooden spoon
Measuring cups and spoons
Small bowl for topping mix
Cutting board and chef’s knife
Oven mitts and a cooling rack

Mistakes That Ruin Cheesy Broccoli Rice Casserole

Overcooking the broccoli. If you skip the quick blanch and boil it too long, it becomes mushy and loses color. The 1–2 minute blanch followed by an ice-cold rinse is deliberate—don’t skip it.

Using raw rice. The rice must be cooked before it goes into the casserole. Raw rice will absorb too much liquid in the oven and leave you with an uneven texture.

Thin sauce. Rushing the roux or not allowing the sauce to thicken before you add the cheeses can leave you with a loose, soupy casserole. Cook the roux 1–2 minutes and let the milk simmer until it coats the back of a spoon.

Overbaking. Baking long enough to brown the topping is important, but too long will dry the casserole out. Check at 30 minutes; 30–45 minutes covers most ovens.

Holiday & Seasonal Touches

For a holiday twist, add toasted sliced almonds or chopped pecans to the panko mix for a nutty crunch and festive texture. In fall, fold in small cubes of roasted butternut squash for sweetness and color. In winter, a sprinkle of finely grated fresh Parmesan with the cheddar on top sharpens the flavor and adds an elegant finish.

Spring and summer versions can include fresh herbs—tarragon or chives folded into the finished casserole brighten the dish and pair well with the broccoli.

Cook’s Commentary

I make this casserole with whatever cooked white rice I have on hand—leftovers work beautifully. Use freshly shredded cheddar rather than pre-shredded for a silkier sauce; pre-shredded often has anti-caking agents that affect melting.

Keep stirring the sauce while it simmers. It’s a short window but staying with the pan prevents scorching and ensures the roux fully hydrates. When mixing the rice and broccoli into the sauce, fold gently to keep broccoli florets intact and evenly distributed.

How to Store & Reheat

Refrigerate: Cool the casserole to room temperature, cover tightly, and refrigerate for up to 3–4 days. Reheat individual portions in the microwave until hot. For best texture, reheat in a 350°F oven covered with foil for 10–15 minutes, then uncover for a few minutes to refresh the topping.

Freeze: Fully cool, wrap tightly with plastic wrap and foil, or transfer to a freezer-safe container. Freeze up to 2 months. Thaw overnight in the refrigerator before reheating in the oven at 350°F until warmed through (about 30–40 minutes if thawed).

Helpful Q&A

Q: Can I use frozen broccoli?
A: Yes—thaw and pat very dry, and skip the blanch step. Because frozen broccoli releases more moisture, press out excess water so the casserole doesn’t become watery.
Q: What rice works best?
A: Plain cooked white rice is what the recipe calls for. Long-grain white or jasmine both work. Leftover chilled rice gives the best texture.
Q: Can I make this ahead?
A: Assemble the casserole, cover, and refrigerate for up to 24 hours. Add a few extra minutes to the bake time if baking straight from cold.
Q: Can I reduce the dairy?
A: You can experiment with lower-fat milk, but whole milk yields a richer sauce. Cutting the cream cheese or cheese will affect creaminess and flavor.

Next Steps

Make a test run on a quieter night to get oven timing dialed in for your equipment. Once you’ve made it, try one of the flavor variations above and note what you like. This casserole freezes well, so it’s a great candidate for batch cooking when you want dinner-ready meals on hand.

If you enjoyed this, bookmark it and share it with a friend who needs a reliable weeknight casserole. Keep the routine simple: cook the rice ahead, blanch the broccoli when you’re ready, and let the oven do the finishing work. Happy cooking—and enjoy that golden, cheesy top.

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Cheesy Broccoli Rice Casserole

Creamy, cheesy casserole combining blanched broccoli and cooked rice in a cheddar sauce, topped with a panko-cheese crust.

Prep Time10

Cook Time50

Total Time1

Course: Side Dish

Servings: 4 servings

Ingredients

5 cupsbroccoliflorets fresh, cut to bite-size pieces
2 cupswhite ricecooked
3 tbspbuttersalted
1 cuponiondiced
3 tbspflour
1/2 tspgarlic salt
1/4 tsppepper
2 cupsmilk2% or whole
1/4 tspdry mustard powder
1/4 tsppaprikadried
2 ozcream cheese
2 cupscheddar cheesefreshly shredded divided
2 tbspbuttersalted melted
1/2 cuppanko bread crumbs
1/2 tspItalian spicesdried
1 tspparsleyfresh chopped

Instructions

Preheat the oven to 350°F. Grease a 9×13-inch baking dish and set it aside.
Bring a pot of salted water to a boil. Add the 5 cups fresh broccoli florets (cut to bite-size) and blanch 1–2 minutes until bright green and just tender. Drain and immediately rinse under cold running water to stop cooking; drain well and set aside.
In a large skillet over medium-low heat, melt the 3 tbsp salted butter. Add the 1 cup diced onion and cook, stirring regularly, until the onion is soft and translucent, about 5 minutes.
Whisk into the pan: 3 tbsp flour, ½ tsp garlic salt, and ¼ tsp pepper. Cook and stir 1–2 minutes to remove the raw flour taste.
Raise the heat to medium. Slowly whisk in the 2 cups milk (while pouring) and bring to a gentle simmer. Cook, stirring frequently, 3–5 minutes until the sauce thickens and coats the back of a spoon.
Remove the pan from the heat and whisk in ¼ tsp dry mustard powder, ¼ tsp paprika, the 2 oz cream cheese, and 1½ cups of the shredded cheddar cheese. Stir until the cream cheese and cheddar are fully melted and the sauce is smooth.
In the greased baking dish, combine the cheese sauce with the 2 cups cooked white rice and the blanched broccoli. Stir gently until evenly mixed.
In a small bowl, stir together 2 tbsp melted salted butter, ½ cup panko bread crumbs, ½ tsp dried Italian spices, and the remaining ½ cup shredded cheddar cheese.
Sprinkle the panko-cheese mixture evenly over the casserole. Bake uncovered at 350°F for 30–45 minutes, until the casserole is bubbling and the topping is golden brown.
Remove from the oven, sprinkle with 1 tsp fresh chopped parsley, let rest a few minutes, then serve.