Go Back
+ servings
Serve roasted broccoli cauliflower in a bowl topped with fresh parsley for a keto side dish.
4.25 from 12 votes

Garlic Parmesan Roasted Broccoli & Cauliflower

Roasted Broccoli and Cauliflower are accompanied by a delicious blend of garlic and Parmesan for a showstopping low-carb and ketogenic diet side dish!  You can have this oven roasted broccoli-cauliflower recipe ready and on the table in under 30 minutes!

Course Dinner, Side Dish
Cuisine American
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings 6 servings
Calories 142 kcal


  • 1 head cauliflower cut into bite-sized florets
  • 1 head broccoli cut into bite-sized florets
  • 2 Tbsp. olive oil
  • 2 Tbsp. butter melted
  • 2 cloves garlic crushed
  • 1 tsp. lemon zest
  • 1 tsp. salt to taste
  • ½ tsp. black pepper to taste
  • ½ cup Parmesan cheese grated, divided
  • 3 Tbsp. parsley curly leaf, finely chopped


  1. Preheat oven to 425°F.

  2. Whisk oil, butter, crushed garlic, zest, salt, and pepper together in a small bowl.
  3. Add cauliflower to a large bowl along with half of the sauce and 3 tablespoons of Parmesan cheese. Toss until well coated.
  4. Line a large baking sheet with parchment paper. Spread cauliflower on the pan in a single layer. Bake in preheated oven for 8-10 minutes
While cauliflower is roasting, add broccoli to the same large bowl along with the remaining sauce and 3 tablespoons of Parmesan cheese. Toss until well coated.
Add broccoli to the baking sheet full of cauliflower and spread out evenly on the pan.
Return to oven for 13-15 minutes, or until the edges begin to crisp up and brown slightly.
Serve vegetables with the remaining Parmesan cheese and chopped parsley. Enjoy!

Recipe Notes

Learn how to cut cauliflower into florets and how to zest a lemon.

Nutrition Facts
Garlic Parmesan Roasted Broccoli & Cauliflower
Amount Per Serving
Calories 142 Calories from Fat 99
% Daily Value*
Fat 11g17%
Saturated Fat 5g31%
Cholesterol 16mg5%
Sodium 521mg23%
Potassium 335mg10%
Carbohydrates 6g2%
Fiber 2g8%
Sugar 2g2%
Protein 5g10%
Vitamin A 822IU16%
Vitamin C 59mg72%
Calcium 134mg13%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.