Katie Lee Broccoli Casserole Recipe: Cheesy Bake With Crunchy Topping

This cheesy broccoli bake transforms a humble vegetable into a crowd-pleasing side dish. The combination of tender florets, creamy sauce, and crispy topping creates a perfect balance in every bite.

I’ve refined this method to ensure the casserole stays rich and comforting without being heavy. The secret is layering flavors while keeping the preparation straightforward for impressive results.

Ingredients for Katie Lee Broccoli Casserole

Fresh broccoli and creamy cheeses create this comforting bake with crispy breadcrumb topping.

The cheese quality is non-negotiable here. Sharp cheddar and Monterey Jack from a block (not pre-shredded) melt smoothly without clumping. Whole Foods or Trader Joe’s have reliable selections. For the breadcrumbs, Kikkoman panko gives that perfect crunch—found in most grocery stores’ Asian aisle. Fresh nutmeg makes a noticeable difference; Penzeys carries whole nuts for grating.

No sharp cheddar? Gruyère or pepper jack work well. Swap heavy cream for half-and-half if you’re ok with slightly less richness. Vegetarian Worcestershire is essential—Annie’s or Edward & Sons make reliable versions. For a gluten-free option, use rice flour instead of all-purpose and gluten-free panko. The broccoli can be frozen (thawed and drained) in a pinch.

Assemble just before baking for best texture. Leftover casserole keeps 3-4 days refrigerated, reheats beautifully. Freeze unbaked portions for up to 2 months—thaw overnight before baking. The topping stays crispest if added fresh, but it’s still delicious if stored with the casserole.

Step-by-Step Instructions for Broccoli Casserole

Master the technique for a rich, creamy bake with a perfectly crisp topping every time.

Step 1: Blanch and Shock the Broccoli

Bring a large pot of salted water to a rolling boil. Add all 1.5 lb Fresh Broccoli florets and cook for exactly 2 minutes until bright green and slightly tender. The florets should still have a bit of bite—they’ll finish cooking in the oven.

Immediately transfer the broccoli to a bowl of ice water to stop the cooking process. This preserves the vibrant color and crisp-tender texture. Drain well and pat dry with a clean kitchen towel to remove excess moisture, which could make the casserole watery.

Step 2: Prepare the Cheese Sauce Base

In a heavy saucepan, melt all 0.5 cup Unsalted Butter over medium heat. Add the 0.5 whole Yellow Onion, finely diced, and cook for 3-4 minutes until translucent and soft. Stir in the minced 3 cloves Garlic Cloves and cook for 30 seconds until fragrant but not browned.

Whisk in all 0.25 cup All-Purpose Flour and cook for 1-2 minutes to form a smooth roux. This step removes the raw flour taste and builds the foundation for your sauce. Gradually pour in all 1 cup Heavy Cream and 0.5 cup Whole Milk, whisking constantly to avoid lumps.

Step 3: Build Flavor and Combine with Broccoli

Stir in 1 tbsp Dijon Mustard, 1 tsp Worcestershire Sauce, 1 tsp Salt, 0.5 tsp Black Pepper, and 0.25 tsp Ground Nutmeg. Simmer for 3-4 minutes until the sauce thickens enough to coat the back of a spoon. Taste and adjust seasoning if needed—this is your chance to fine-tune the balance.

Remove from heat and stir in 2 cups Sharp Cheddar Cheese and 1 cup Monterey Jack Cheese until fully melted and smooth. Fold in the blanched broccoli, ensuring each floret is well coated. Transfer the mixture to a greased 9×13-inch baking dish.

Step 4: Add the Crunchy Topping and Bake

In a small bowl, toss 1 cup Panko Breadcrumbs with 2 tablespoons of the melted butter from the sauce (or melt additional if needed). Sprinkle this evenly over the casserole, pressing down lightly to adhere. This will create a golden, crisp layer that contrasts beautifully with the creamy filling.

Bake in a preheated 375°F oven for 25-30 minutes until bubbly at the edges and the topping is deep golden brown. If the breadcrumbs brown too quickly, tent the dish loosely with foil. Let it rest for 5 minutes before serving to allow the sauce to set slightly.

Perfect Pairings for katie lee broccoli casserole

Wine Pairings

A crisp Sauvignon Blanc like Kim Crawford from New Zealand cuts through the richness with its bright acidity and citrus notes. The grassy undertones complement the broccoli beautifully. I always keep a bottle on hand for creamy dishes. 🍷

Beer Options

A light pilsner such as Stella Artois offers a clean, refreshing contrast to the cheesy casserole. For craft lovers, Allagash White with its subtle spice and citrus adds an interesting twist without overwhelming the flavors.

Side Dish Ideas

Serve with a simple green salad dressed in lemon vinaigrette to balance the richness. Toss 4 cups mixed greens with 2 tbsp olive oil and 1 tbsp lemon juice. The acidity refreshes your palate between bites. 🥗

Bread Pairings

A warm sourdough bread basket is perfect for soaking up any extra cheese sauce. I recommend Boudin Bakery sourdough if you can find it. Toast slices lightly for extra crunch.

Protein Additions

For a heartier meal, add grilled chicken breast or crispy bacon bits on top before baking. The smoky flavor pairs wonderfully with the sharp cheddar. I often use Applegate Farms bacon for quality.

Frequently Asked Questions