The Cheesiest Cheddar Broccoli Cauliflower Carrot Gratin
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Let’s make a side dish that might just become a new favorite at your table—Cheddar Broccoli Cauliflower Carrot Gratin. It’s a simple, comforting dish loaded with veggies and topped with a creamy, cheesy sauce. You’ll start by prepping the broccoli, cauliflower, and carrots and arranging them in a baking dish. The sauce comes together effortlessly, thanks to Campbell’s Cream of Mushroom Soup, which adds a rich and smooth base. Pour the sauce over the veggies, bake for about 30 minutes, and then finish it off with breadcrumbs and a sprinkle of cheese for a golden, bubbly topping. It’s quick to prepare, full of flavor, and perfect for family dinners or holiday spreads.

Why You’ll Love Cheddar Broccoli Cauliflower Carrot Gratin
- Simple Yet Delicious: This gratin comes together in a snap. You just prep the veggies, mix up the creamy sauce with Campbell’s Cream of Mushroom Soup, and pop it in the oven. It’s one of those recipes that’s easy enough for a weeknight but still feels special.
- Cheesy Comfort in Every Bite: The sharp cheddar cheese adds such a rich, savory layer to this dish. Paired with the creamy mushroom sauce, it’s the kind of cheesy goodness that everyone loves.
- Veggies That Don’t Feel Like Veggies: If you’ve got picky eaters, this dish is a game-changer. The creamy cheese sauce makes broccoli, cauliflower, and carrots totally irresistible—even for the little ones!
- Crispy, Golden Top: The breadcrumb and cheese topping is where the magic happens. It’s got that perfect crunch on top, which is the ideal contrast to the creamy veggies underneath.
- Quick Enough for Busy Nights: With just about 45 minutes of cook time, this gratin is easy to whip up when you’re short on time but still want a side dish that feels like a treat.
Ingredients Needed To Make Cheddar Broccoli Cauliflower Carrot Gratin
Make sure you scroll down to the recipe card to see the full list of ingredients needed for this recipe.
- Cream of mushroom soup
- Sharp cheddar cheese, shredded
- Broccoli, chopped
- Cauliflower, chopped
- Carrots, chopped
- Onion powder
- Garlic powder
- Kosher salt
- Black pepper
- Half-and-half
- Italian bread crumbs
Oven Temperatures
Oven temperatures can vary significantly from one oven to another. To achieve consistent results, it’s crucial to know the exact temperature inside your oven. The safest and most accurate way to determine this is by using an oven thermometer. This simple tool can help you avoid underbaking or overbaking your treats.

How To Make Cheddar Broccoli Cauliflower Carrot Gratin
- Preheat the oven and grease a baking dish.
- Prepare the vegetables and add them to the baking dish.
- Mix together the cheese sauce ingredients.
- Pour the cheese mixture over the vegetables and stir to coat.

- Bake the dish, then top with cheese and breadcrumbs before baking again.
- Serve and enjoy!
Commonly Asked Questions
Can I use frozen vegetables for this recipe?
Yes, you can use frozen broccoli, cauliflower, and carrots in this gratin. Just remember to adjust the initial baking time, reducing it to 20 minutes instead of 30 to account for the vegetables being pre-cooked. The rest of the steps remain the same, so you’ll still get that delicious cheesy goodness!
How should I store leftover Cheddar Broccoli Cauliflower Carrot Gratin?
Store any leftovers in an airtight container in the refrigerator. It’ll stay fresh for up to 3-4 days, and you can enjoy it later as a quick side dish or even a light meal.
Can I reheat the Cheddar Broccoli Cauliflower Carrot Gratin?
Definitely! Reheat it in the oven at 350°F for about 10-15 minutes or until it’s heated through. You can also microwave it, but the texture might be a bit different. If you prefer a crispy topping, stick with the oven.
Can I use a different kind of cheese for the Cheddar Broccoli Cauliflower Carrot Gratin?
Of course! While sharp cheddar gives this gratin its rich flavor, feel free to swap in other cheeses like mozzarella, gouda, or Monterey Jack if you prefer. Just keep in mind that the flavor will change slightly, but it’ll still be delicious.
How can I make the topping extra crunchy?
If you want an extra crispy top, try broiling the gratin for a few minutes after the final bake. Just watch it closely to make sure it doesn’t burn! You can also add a little extra breadcrumbs or even some grated parmesan for an added crunch.

Cheddar Broccoli Cauliflower Carrot Gratin
Ingredients
- 10.5 oz cream of mushroom soup
- 12 oz sharp cheddar cheese shredded (reserve ¼ cup for topping)
- 4 cups broccoli chopped
- 3 cups cauliflower chopped
- 2 cups carrots chopped
- ½ tsp onion powder
- ½ tsp garlic powder
- 1 ½ tsp kosher salt
- ½ tsp black pepper
- 1 ½ cups half-and-half
- ½ cup Italian bread crumbs
Instructions
- Preheat your oven to 375°F (190°C). Grease a 9×13 baking dish with nonstick spray.
- Chop all the vegetables into bite-sized pieces and place them in the prepared baking dish.
- In a large mixing bowl, combine the cream of mushroom soup, shredded cheese (reserving ¼ cup for topping), onion powder, garlic powder, salt, pepper, and half-and-half. Mix until well combined.
- Pour the cheese mixture over the vegetables in the baking dish, stirring gently to coat evenly.
- Cover the dish with foil and bake for 30 minutes, or until the vegetables are tender.
- Remove the foil, sprinkle the reserved cheese and Italian bread crumbs on top, and bake for an additional 10 minutes, or until golden and bubbly.
- Serve warm and enjoy!
Notes
Nutrition
This broccoli, cauliflower, and carrot gratin has quickly become one of my go-to side dishes, especially for family dinners. It’s comforting, cheesy, and the perfect balance of veggies with that golden, crispy topping. Whether you’re serving it for a holiday gathering or just a cozy weeknight meal, it’s always a crowd-pleaser! Give it a try, and I promise it’ll be on repeat at your house too.
