Cheesy Broccoli Casserole with Sharp Cheddar

Cheesy broccoli casserole featuring tender green florets topped with a toasted, buttery cracker and Parmesan crust.
Broccoli Casserole for 10 Servings
By Taylor ThompsonUpdated:
Blanching the greens first helps keep them from getting mushy and reduces the chance of a watery base when they are drained well. This Broccoli Casserole stays bright and creamy throughout.
  • Time: 15 min active + 30 min baking
  • Flavor & Texture: Rich, cheesy, and buttery with a cracker crunch
  • Perfect for: Family weeknight sides or holiday potlucks

Easy Cheesy Broccoli Casserole

The real star here is the broccoli. When you blanch it first, you lock in that vivid green color and a bit of snap, so the veg doesn't disappear into the sauce. It's a simple way to get a side dish that feels put together without spending all night in the kitchen.

This bake relies on a quick homemade roux to keep the cheese sauce stable. It's much better than using canned soup, as it lets you control the salt and gives you a cleaner flavor. You'll get a rich, bubbling dish with a salty crust that holds up well on a serving platter.

The result is a comforting mix of sharp cheddar and buttery crackers. It's the kind of side that makes people actually excited to eat their greens.

The Grocery List

  • 1½ lbs fresh broccoli florets, bite-sized
  • 2 tbsp unsalted butter Why this? Base for the roux
  • 2 tbsp all-purpose flour Why this? Thickens the sauce
  • 1 cup whole milk
  • 2 cups sharp Cheddar cheese, shredded Why this? Bold flavor that cuts through the milk
  • 1/2 tsp garlic powder
  • 1/4 tsp salt
  • 1/4 tsp black pepper
  • 100 g buttery crackers, crushed
  • 3 tbsp unsalted butter, melted
  • 1/2 cup Parmesan cheese, grated
Original IngredientSubstituteWhy It Works
Sharp CheddarGruyèreSimilar meltability. Note: Much nuttier and more expensive
Buttery CrackersPanko BreadcrumbsGreat crunch. Note: Needs extra butter to brown well
Whole MilkHeavy CreamRicher texture. Note: Reduce butter in roux by 1 tbsp

Cooking Steps

Prepping the Greens

Bring a large pot of lightly salted water to a boil. Add the 1½ lbs broccoli florets and cook for 3 minutes until they reach a vibrant green hue. Immediately drain them using a colander and rinse with cold water to stop the cooking process.

Building the Creamy Base

Set your oven to 180°C (350°F) and grease a 2 quart casserole dish. Using a saucepan over medium heat, melt 2 tbsp unsalted butter. Whisk in 2 tbsp all-purpose flour and cook for 1 minute to remove the raw flour taste.

Slowly stir in 1 cup whole milk, whisking constantly until the sauce reaches a thick, velvety consistency. Mix in 1/2 tsp garlic powder, 1/4 tsp salt, 1/4 tsp black pepper, and 2 cups shredded sharp Cheddar cheese until the mixture is smooth.

Assembly and Baking

Fold the blanched broccoli into the cheese sauce until every floret is well-coated. Spread the mixture evenly into the greased dish.

In a small bowl, combine 100 g crushed buttery crackers with 3 tbsp melted unsalted butter and 1/2 cup grated Parmesan cheese. Sprinkle the topping evenly over the broccoli. Bake for 25–30 minutes until the sauce is bubbling at the sides and the crust is a deep golden brown.

Fixing Common Issues

A generous scoop of creamy green florets and melted gold cheese topped with crispy toasted cracker crumbs.

When Sauce Is Too Thick

If the cheese sauce feels like a paste before you add the broccoli, it's too thick. Whisk in a tablespoon of milk or a splash of cream over low heat. It should be pourable and glossy.

Topping Browns Too Fast

If the cracker crust turns dark before the center is bubbling, the oven might be running hot. Cover the dish loosely with a piece of foil. This protects the topping while the heat finishes penetrating the broccoli.

Dealing With Watery Bottoms

A pool of liquid at the bottom usually means the broccoli wasn't drained well enough after blanching. Pat the florets dry with a paper towel before folding them into the sauce. This keeps the sauce thick and clingy.

Storage and Leftovers

Place leftovers in a sealed dish in the refrigerator for a maximum of 4 days.

This meal can be frozen if prepared before baking, though the sauce may look slightly grainy after thawing. Combine the broccoli and sauce in your baking pan, then freeze. Allow the dish to defrost in the refrigerator overnight before heating. Sprinkle on the cracker topping fresh just before it goes into the oven.

To reheat, cover with foil and use the oven at 160°C (325°F). This ensures the center warms through without burning the topping. To maintain the crunch of the crackers, skip the microwave.

Better With These

This bake is heavy on cheese and cream, so it pairs well with something acidic or lean. I like it alongside a grilled lemon herb chicken or a crisp arugula salad with a sharp vinaigrette. It also works as a side for a roast beef dinner.

Customizing Your Bake

To make this a more filling meal, consider a Broccoli Casserole with Rice. Stir in 2 cups of cooked long-grain white rice immediately before transferring the mixture to the baking dish. You may want to add an extra 1/4 cup of milk to prevent it from drying out.

For a healthier Broccoli Casserole, replace the whole milk with a combination of skim milk and Greek yogurt for a bit of tang. You can also use a light cheese blend or reduce the amount of butter in the topping.

If you're pressed for time and want to avoid making a roux, a pre-made sauce works well. This Alfredo Sauce is an ideal base. Simply fold the blanched broccoli into the warmed sauce and proceed with the topping.

Recipe FAQs

How to cook broccoli so it's not soggy?

Blanch the florets for three minutes and shock them in cold water. This stops the cooking process and prevents the vegetables from becoming mushy during baking.

Can you add rice to this casserole?

Yes, fold cooked rice into the cheese sauce. This creates a heartier meal, though ensure the rice is cooled quickly and refrigerated within one hour before adding.

Which cheese is best for this dish?

Sharp Cheddar provides the most robust flavor. It melts perfectly into the sauce, while Parmesan adds a salty, nutty crunch to the topping.

Is this recipe simple for beginners?

Yes, it uses basic culinary techniques. Mastering a simple roux and blanching vegetables makes this an accessible project for any home cook.

Where should leftovers be kept?

Keep them in a covered container in the refrigerator. The dish remains good for up to 4 days.

Why shock the broccoli in cold water?

It halts the cooking process immediately. This preserves the bright green color and ensures the florets maintain a slight bite after baking.

Broccoli Casserole for 10 Servings

Broccoli Casserole for 10 Servings Recipe Card
Broccoli Casserole for 10 Servings Recipe Card
5.0 / 5 (3 Reviews)
Preparation time:15 Mins
Cooking time:30 Mins
Servings:10 servings
Category: Side DishCuisine: American
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Ingredients:

Instructions:

Nutrition Facts
Per serving
Calories
255 kcal
% Daily Value*
Total Fat 17.4 g
   Saturated Fat 11.2 g
Sodium 720 mg
Total Carbohydrate 13.4 g
   Dietary Fiber 2.0 g
   Total Sugars 3.2 g
Protein 11.2 g
* Percent Daily Values are based on a 2,000 calorie diet.
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