This Cauliflower Casserole is a comforting, cheesy vegetable side dish that even picky eaters will enjoy. Tender cauliflower florets are baked in a savory herb stuffing topping and a smooth cream sauce, finished with flavorful Parmesan for a golden, satisfying dish perfect for weeknights or holiday tables.
Easy Cheesy Cauliflower Casserole
This creamy cauliflower casserole is a reliable favorite: simple to prepare, packed with comforting flavors, and loved by families. Fresh cauliflower and herb-seasoned stuffing mix come together in a creamy white sauce, topped with grated Parmesan for a crisp, savory finish.
Ready in about 15 minutes of active prep and under an hour total, this casserole works well alongside a wide variety of mains. It’s casual enough for a quick weeknight meal yet attractive enough to serve at gatherings and holiday dinners.
Tips and Notes
- Pre-cook the cauliflower. Boil the florets until fork-tender so the finished casserole is soft and creamy rather than crunchy.
- Grease the baking dish. A light coating of cooking spray prevents sticking and helps the sauce avoid burning on the bottom.
- Bake uncovered. Leaving the casserole uncovered lets the topping brown and crisp up.
- If the cheese begins to burn. Cover the pan loosely with foil and continue baking until the center is heated through.
- Add extra crunch. Stir in crispy bacon bits or toasted nuts to the topping for more texture.
- Boost the flavor. A sprinkle of garlic powder, onion powder, or a pinch of cayenne adds depth and a little heat.
- Make it cheesier. Mix additional shredded cheeses—such as cheddar, mozzarella, fontina, or Gruyère—with the Parmesan for a richer topping.
Serving Suggestions
This cauliflower casserole pairs beautifully with roasted, baked, or pan-seared proteins. Garnish with sliced green onions or fresh herbs and serve alongside chicken, fish, or pork for a complete meal. It complements lighter mains like lemon chicken or baked shrimp as well as heartier options.
Storage
Refrigerator: Store cooled leftovers in an airtight container for 4–5 days. You can also tightly wrap the baking dish in plastic wrap once the casserole is cool.
Reheat: Warm leftovers in a 350ºF oven until heated through to help restore the topping’s texture.
Freezer: Freezing is not recommended. The sauce and cauliflower can separate and become watery after thawing.
Why Is My Cauliflower Bake Watery?
A watery casserole usually comes from a few common issues:
- Overcooked cauliflower. If florets are too soft before baking they release excess moisture. Cook until just fork-tender.
- Undercooked sauce. Allow the white sauce to thicken and bubble slightly on the stove before combining with the cauliflower so it sets properly during baking.
- Serving too soon. The casserole will firm up as it cools. Let it rest a few minutes before serving to allow the sauce to set.
More Cauliflower Recipes You’ll Love
- Cauliflower Steaks
- Whole Roasted Cauliflower
- Mashed Cauliflower
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Cauliflower Casserole
What You’ll Need
- 5 cups cauliflower florets (about 1 medium head)
- 5 tablespoons unsalted butter, divided
- 1/4 cup all-purpose flour
- 2 cups milk
- 1 teaspoon salt
- Pinch black pepper
- 1 cup unprepared herb-seasoned stuffing mix
- 1/4 cup water or broth
- 1/4 cup grated Parmesan cheese
How to Make It
- Preheat the oven to 350°F and lightly grease a 1½–2 quart baking dish.
- Bring a large pot of salted water to a boil. Cook the cauliflower for 8–10 minutes until fork-tender, then drain and place in the prepared baking dish.
- Melt 3 tablespoons of butter in a medium saucepan over low–medium heat. Whisk in the flour and cook 1–2 minutes until smooth.
- Slowly whisk in the milk and continue stirring until the sauce thickens and bubbles slightly. Remove from heat and season with salt and pepper. Spoon the sauce over the cauliflower.
- In a medium bowl, melt the remaining 2 tablespoons of butter. Stir in the stuffing mix and the water (or broth) until combined. Spread the stuffing mixture over the cauliflower and sprinkle with Parmesan.
- Bake uncovered for 25–30 minutes, or until the sauce is bubbly and the topping is golden brown.
- Remove from the oven and let rest a few minutes before serving. Serve warm.
Suggested Equipment
- 1½–2 quart baking dish
- Saucepan
Notes
*Calorie estimate is approximate and based on a serving size of about 3/4 cup. Actual nutrition will vary.
*See the tips above for troubleshooting, storage, and variations.