Knorr Broccoli Cheddar Rice Casserole Recipe: One-Dish Cheesy Comfort

This one-dish casserole brings comfort food to a new level with minimal effort and maximum flavor. The combination of tender rice, fresh broccoli, and sharp cheddar creates a satisfying meal that feels like a warm hug on a plate.

Using Knorr’s seasoning packet as the base ensures consistent, rich flavor without complicated steps. I’ve refined this method to guarantee the rice cooks perfectly while the cheese melts into a creamy, golden layer on top.

The beauty of this recipe lies in its simplicity—just mix, bake, and serve. It’s the kind of dish that turns everyday ingredients into something everyone will ask for seconds.

Ideal for busy weeknights or potlucks, this casserole delivers cheesy satisfaction in every bite. Here’s how to make it.

Ingredients for Knorr Broccoli Cheddar Rice Casserole

Everyday ingredients transform into a creamy, cheesy one-dish wonder with minimal effort.

The cheese is non-negotiable here. Sharp cheddar from a block melts smoother than pre-shredded (which has anti-caking agents). Cabot or Tillamook are excellent choices. For the rice, long-grain white holds its shape best—avoid instant or minute rice. The Knorr packet provides the base flavor, so use the full amount for consistent results.

No sharp cheddar? Colby Jack or Monterey Jack work in a pinch (though less tangy). Out of fresh broccoli? Frozen florets can be used—thaw and drain well first. For a richer sauce, swap whole milk for half-and-half. The onion and garlic add depth, but onion powder and garlic powder at half the amount works if fresh isn’t available.

Assemble and refrigerate up to 24 hours before baking. Leftovers keep for 3-4 days in the fridge or freeze for 2 months. Reheat covered to prevent drying out.

Step-by-Step Instructions for Knorr Broccoli Cheddar Rice Casserole

This method ensures a creamy, cheesy casserole with perfectly cooked rice and tender broccoli.

Step 1: Sauté Aromatics and Prepare Rice Base

In a large skillet or Dutch oven, melt 2 tbsp unsalted butter over medium heat. Add the 0.5 whole yellow onion, finely diced, and cook for 3-4 minutes until it becomes translucent and begins to soften. This builds the flavor foundation for the casserole.

Add the 2 cloves garlic cloves, minced, and cook for an additional 30 seconds until fragrant. Stir in the 1.5 cups long grain white rice and toast for 1-2 minutes, which enhances the nutty flavor of the rice. Sprinkle in the 1 package Knorr broccoli cheddar rice seasoning packet and stir to coat the rice evenly.

Step 2: Combine Liquids and Simmer Rice

Pour in the 2.5 cups water and 1 cup whole milk, stirring to combine. The mixture will look thin at first, but the rice will absorb the liquid as it cooks. Add the 2 cups fresh broccoli florets, ensuring they are submerged in the liquid to cook evenly.

Increase the heat to medium-high and bring the mixture to a gentle boil. Once boiling, reduce the heat to low, cover, and simmer for 15-18 minutes, or until the rice is tender and most of the liquid has been absorbed. Avoid lifting the lid during this time to maintain consistent heat.

Step 3: Prepare the Cheese Sauce

In a separate saucepan, melt 2 tbsp unsalted butter over medium heat. Whisk in the 2 tbsp all-purpose flour to create a roux. Cook for 1-2 minutes, stirring constantly, until the mixture turns a light golden color and smells nutty.

Gradually whisk in the 1 cup whole milk until smooth. Continue cooking for 2-3 minutes until the sauce thickens enough to coat the back of a spoon. Season with 0.5 tsp salt and 0.25 tsp black pepper, adjusting to taste.

Step 4: Combine and Bake to Perfection

Preheat your oven to 375°F. Once the rice is cooked, stir in 1.5 cups sharp cheddar cheese (reserving the remaining 0.5 cup for topping) into the rice mixture until melted and fully incorporated. This creates a creamy, cheesy base.

Pour the mixture into a greased 9×13-inch baking dish and sprinkle the reserved 0.5 cup sharp cheddar cheese evenly over the top. Bake for 10-12 minutes until the cheese is melted and bubbly, and the edges are light golden brown. The casserole should be heated through with a slightly crisp top layer.

Step 5: Rest and Serve

Remove the casserole from the oven and let it rest for 5 minutes. This allows the sauce to thicken slightly and the flavors to meld together. The rice should be tender, the broccoli vibrant, and the cheese sauce velvety smooth.

Garnish with additional black pepper if desired. Serve warm, ensuring each portion has an even distribution of rice, broccoli, and cheesy goodness. This dish is best enjoyed fresh but reheats beautifully for leftovers.

Pro Cooking Tips for knorr broccoli cheddar rice casserole

Perfect Rice Texture

Toasting the long grain white rice for 1-2 minutes before adding liquid is crucial. This prevents a mushy texture and enhances the nutty flavor. I use a Dutch oven for even heat distribution during this step. 💡

Cheese Melting Trick

Always shred your own sharp cheddar cheese from a block. Pre-shredded cheese contains anti-caking agents that prevent smooth melting. Cabot or Tillamook brands melt beautifully. Stir in 1.5 cups first, then top with the remaining 0.5 cup for baking.

Broccoli Perfection

For tender-crisp broccoli, add the 2 cups fresh florets to the liquid mixture early. If using frozen, thaw and drain well first to avoid excess moisture. The florets should be submerged in liquid to cook evenly.

Sauce Consistency

Your roux needs 1-2 minutes of constant stirring to develop that golden color. Gradually whisk in the 1 cup whole milk to prevent lumps. The sauce should coat the back of a spoon before combining with the rice mixture. 🔥

Baking Precision

Bake at 375°F for 10-12 minutes until bubbly with golden edges. Don’t skip the 5-minute rest—this allows the sauce to thicken and flavors to meld together properly.

Equipment Tip

A 9×13-inch baking dish is ideal for even cooking. I recommend Pyex glass so you can monitor browning. Always grease the dish first to prevent sticking.

Frequently Asked Questions