Oven Roasted Broccoli and Cauliflower

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Oven roasted broccoli and cauliflower makes the perfect vegetable side dish to any meal, and it only requires a handful of simple ingredients.

close up cooked broccoli and cauliflower

Sticking with a low-carb diet means we eat so much broccoli and cauliflower in our house. We seriously go through a whole head of cauliflower and at least 2 bunches of broccoli a week. Yes, you read that right–a week!

Because we eat so much of the stuff, I needed an easy way to prepare it, that isn’t just your boring run of the mill steamed version. Not that there’s anything wrong with steamed broccoli and cauliflower, but after awhile of eating it over and over again it gets a little old!

roasted cauliflower and broccoli florets on a baking pan with wooden spoon

Oven roasted broccoli and cauliflower far from boring, and it’s so easy to make! Just a few simple spices, some oil and you’re set for a delicious side dish! You could even make this recipe as just broccoli or just cauliflower. It works out the same way.

The preparation is pretty similar to my oven roasted zucchini that I make quite often too. The blend of spices, mixed with oil and high oven temperature really brings out the flavor of the vegetables and makes them so tender and delicious.

Ingredients You Need to Make Oven Roasted Broccoli and Cauliflower

The ingredient list is simple for this veggie side dish. All you need is olive oil, cauliflower and broccoli (fresh is best!) and some seasonings. We love to top our baked cauliflower and broccoli with grated Parmesan cheese too.

close up of cooked broccoli and cauliflower on a wooden spoon

How to roast broccoli and cauliflower in the oven

First, heat the oven to 400 degrees. You’ll need this high of temperature to roast the veggies to get a nice crisp/crunch! Add parchment paper to a baking sheet for easy cleanup.

Next, use a medium bowl to put the cut up broccoli and cauliflower florets into. Toss them in some olive oil to make sure they are fully coated. Just a light coating! They don’t need to swim in the oil.

Then, sprinkle in your favorite seasonings and toss the broccoli and cauliflower florets around to coat. You could also use a plastic bag for these steps a la Shake and Bake style!

How Long to Roast Broccoli and Cauliflower in the Oven

Roast broccoli and cauliflower at 400 degrees for 20 minutes or until the broccoli and cauliflower are fork tender. When they are finished, remove from oven and sprinkle on some fresh grated Parmesan cheese.

roasted broccoli and cauliflower on sheet pan

How to Roast Frozen Broccoli and Cauliflower

Cooking frozen broccoli and cauliflower in the oven has a little bit different prep than normal. Since the frozen veggies retain water, it’s best to let them thaw first. Then follow the same directions as above for seasoning. Roast frozen broccoli and cauliflower at 400 degrees for about 15 minutes. Then turn broil on high for about 5-7 minutes for some crispness. Keep in mind that the cauliflower and broccoli will be softer than fresh when using this oven roasting method.

What to serve with Roasted Cauliflower and Broccoli

Easy roasted broccoli and cauliflower goes with just about any entree. Here are some of our favorite recipes to serve this roasted vegetable side dish with:

roasted broccoli and cauliflower on sheet pan with wooden spoon and oven mit

More delicious veggie side dishes:

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Easy and delicious oven roasted broccoli and cauliflower. A simple vegetable pairing for your next dinner.

Roasted Broccoli and Cauliflower

Yield: 4
Prep Time: 5 minutes
Cook Time: 20 minutes
Total Time: 25 minutes

Simple recipe for oven roasted broccoli and cauliflower side dish that makes a great addition to any meal.


  • 3 cups Broccoli florets
  • 3 cups cauliflower florets
  • 2 tbsp olive oil
  • 1 tsp garlic powder
  • 1 tsp smoked paprika
  • 1/2 tsp each salt and pepper
  • 1/4 cup grated Parmesan cheese


  1. Preheat oven to 400°F
  2. Line a baking sheet with parchment paper and set aside
  3. In a large bowl, toss broccoli and cauliflower in olive oil and seasonings.
  4. Place the broccoli and cauliflower on the prepared baking sheet, and place in the oven.
  5. Bake for 20 minutes or until broccoli and cauliflower are fork tender.
  6. Remove from oven and top with Parmesan cheese.
  7. Optional for a nice crisp, place under the broiler for 2-3 minutes.
Nutrition Information
Yield 4 Serving Size 4 Servings
Amount Per Serving Calories 153Total Fat 9gSaturated Fat 2gTrans Fat 0gUnsaturated Fat 7gCholesterol 5mgSodium 323mgCarbohydrates 14gFiber 6gSugar 4gProtein 6g

Nutrition values are automatically calculated by third-party software using global standards. Please note that values can vary based on product brands and different nutritional calculators. The values stated here are only for a basic reference and are not evaluated by medical or nutritional professionals.

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  1. Omgosh this looks incredible! I love broccoli and cauliflower but I have always made it on the stove top. Can’t wait to try this out to free up some burner space while making dinner. Thanks for the delicious recipe!

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