Roasted Broccoli and Cauliflower
by Sommer Collier — last updated on Jul 21, 2025 
Our easy Best Roasted Broccoli and Cauliflower recipe shows you step-by-step how to roast cauliflower and broccoli so they’re perfectly tender and delicious. Add lemon pepper seasoning and parmesan cheese for an extra satisfying veggie side dish!
Why We Love This Easy Roasted Cauliflower and Broccoli Recipe
Looking for a simple, filling, and healthy side dish to go with your dinner protein? This easy Roasted Broccoli and Cauliflower recipe pairs perfectly with all your favorite main dishes, whether they’re meat, seafood, or vegetarian.
Sommer’s Recipe Notes
We are using only a handful of simple pantry staples for this easy veggie dish, including lemon pepper seasoning, to let the vegetables shine while also adding some delicious pep. But there are several ways to easily customize the recipe to create the gluten-free and low carb side dish of your dreams!
From start to finish, the oven-roasted cauliflower and broccoli is ready to serve in under 30 minutes. Including prep time! So you can focus more on your main dish, knowing you’ve got the perfect flavorful side ready to go.
Ingredients You Need
- Broccoli – fresh, chopped into florets (Use the stalk to make this healthy and delicious Broccoli Rice recipe!)
- Cauliflower – fresh, chopped into florets (Again, try using the stalk to make our favorite low carb Cauliflower Rice!)
- Extra virgin olive oil – or other high-heat and neutral-tasting oil, like avocado oil
- Lemon pepper seasoning – or whatever seasoning you prefer
- Parmesan cheese – grated
Protein Pointer: If you would like to add extra protein to this recipe, consider sprinkling nutritional yeast over the sheet pan veggies once they come out of the oven.
How to Roast Cauliflower and Broccoli in the Oven
Find the full Roasted Broccoli and Cauliflower recipe with ingredient proportions, detailed instructions, recipe tips, and a video tutorial in the printable form at the bottom of the post.
Recipe Variations
- Veggies – We love the classic combination of broccoli and cauliflower, obviously. But feel free to swap out one or use less of both, and add other vegetables you like. Try this recipe with halved Brussels sprouts, 1-inch pieces of carrots or parsnips, or any hearty veggie!
- Spices – Mix and match the seasonings to complement your meal! Roasted cauliflower and broccoli is a delicious combination with Italian Seasoning, or Indian garam masala, or curry powder. Or try with rosemary, thyme, simply garlic powder and onion powder, plus a pinch of salt and black pepper. And a bit of red pepper flakes or cayenne pepper is great to add a bit of heat!
- Lemon – Finish the roasted vegetables with a squirt of fresh lemon juice and some lemon zest for extra zesty flavor.
- Vegan – You can omit the Parmesan cheese to make this recipe completely plant-based and dairy-free.
- Servings – As-is, this roasted veggies recipe makes 6-8 servings. Easily halve the amount of broccoli and cauliflower as a side dish for 3 or 4 people.
Serving Suggestions
This easy roasted broccoli and cauliflower recipe pairs perfectly with quinoa or rice grain bowls and all your favorite beef, chicken, seafood, and pork dishes!
Serve the oven-roasted veggies with beef entrees, like
- Classic Beef and Noodles
- Beef Wellington
- Steak au Poivre, Steak Diane, a Bone-In Ribeye, or any of your favorite tender and juicy steaks
- Air Fryer Meatloaf
Enjoy the vegetables as a low carb and gluten-free side with chicken and pork dishes, like
- Smoked Chicken Breasts and Thighs
- Retro French Chicken (with lemon and garlic)
- Bourbon Chicken
- Sous Vide Pork Tenderloin or Pork Chops
- Easy Smoked Pork Chops (with brine)
Keep things easy and include these roasted veggies on the table with simple seafood entrees, like
Make it a vegetarian meal and pair the broccoli and cauliflower with Crispy Baked Tofu or Garlic Butter Noodles.
Not too concerned about the healthiness here? Drizzle on some homemade Cheese Sauce for amazing flavor! (The kids especially love this.)
Easy Roasted Broccoli and Cauliflower
Video
Ingredients
- 4 cups fresh broccoli florets
- 4 cups fresh cauliflower florets
- 2 tablespoons olive oil
- 1 tablespoons lemon pepper seasoning
- 3-4 tablespoons grated parmesan cheese
Instructions
- Preheat the oven to 450°F. Set out a large rimmed baking sheet.
- Chop the fresh broccoli and cauliflower into bite-sized florets, approximately 1 ½ inches across.
- Place the broccoli and cauliflower florets on the baking sheet. Drizzle with olive oil. Toss the florets to coat them in oil. Then spread them in an even layer across the baking sheet.
- Sprinkle lemon pepper liberally over the broccoli and cauliflower florets. Roast for 10 minutes. Then turn the cauliflower and broccoli florets over sprinkle the tops with Parmesan cheese
- Roast again for 3-5 minutes, until the edges are crispy and the Parmesan cheese is lightly golden. Serve warm.
Notes
Nutrition
Frequently Asked Questions
No, there is no need to steam broccoli before roasting it in the oven. Add it to the baking sheet raw and you’re good to go!
I prefer to enjoy these roasted veggies right after they come out of the oven. They will keep well for up to 3 or 4 days in an airtight container in the refrigerator… However, the florets will get soft and not have the same crispy goodness around the edges.
The best way to reheat roasted leftovers is to oven bake them on a cookie sheet. Preheat the oven to 400 degrees and roast the cauliflower and broccoli for about 10 minutes, flipping them around at the halfway mark.
Can you add Brussel sprouts to this recipe?
Hi Linda!
Yes, you can. However, brussels need more time in the oven than broccoli and cauliflower. I would cut them in half, and roast them 10-15 minutes before adding the other veggies to the baking sheet.
This recipe is so easy, I made it for my family and everyone loved it!
I had never thought to add lemon pepper seasoning to my vegetables but OMG it’s delicious!!
I’m always looking for delicious way to add more veggies to my kids diets and we LOVE this recipe! All of my kids happily gobbled up this roasted broccoli and cauliflower!