When planning your Thanksgiving feast, you want to offer delicious side dishes that are both healthy and satisfying. Roasted vegetables are a great way to add flavor and nutrition to your holiday spread. One of the best combinations you can prepare is Roasted Broccoli & Cauliflower with Mushrooms. This dish is easy to make, full of flavor, and packed with essential nutrients that your guests will appreciate. Whether you’re hosting a large gathering or cooking for a smaller group, this side dish is sure to be a hit.

Jump to
- Why Choose Roasted Broccoli & Cauliflower for Thanksgiving?
- Ingredients for Roasted Broccoli & Cauliflower with Mushrooms
- How to Make Roasted Broccoli & Cauliflower with Mushrooms
- Nutritional Benefits of Roasted Broccoli & Cauliflower
- Variations and Tips for Roasted Broccoli & Cauliflower
- How to Store and Reheat Roasted Broccoli & Cauliflower
- Pairing Roasted Broccoli & Cauliflower with Other Dishes
- Related recipes
- Final thoughts
Why Choose Roasted Broccoli & Cauliflower for Thanksgiving?
Roasted broccoli and cauliflower bring out the best in these nutrient-dense vegetables. The roasting process caramelizes their natural sugars, creating a crispy exterior while keeping the inside tender. Paired with earthy mushrooms and a simple seasoning of olive oil and garlic, this Roasted Broccoli & Cauliflower with Mushrooms recipe is the perfect addition to your Thanksgiving meal. Plus, it’s an excellent choice for those on gluten-free, vegan, or low-calorie diets.
Ingredients for Roasted Broccoli & Cauliflower with Mushrooms
To make this simple yet flavorful side dish, you’ll need the following ingredients:
- 12 oz package of fresh broccoli florets
- 12 oz package of fresh cauliflower florets
- 8 oz package of white mushrooms, cleaned and sliced
- 1 small onion, cut into large chunks
- 3 cloves garlic, minced
- 1 tablespoon olive oil
- Salt and pepper to taste
These ingredients are all you need to create a flavorful and healthy vegetable dish that is perfect for Thanksgiving. You can also experiment by adding other seasonings or vegetables to fit your preferences.
How to Make Roasted Broccoli & Cauliflower with Mushrooms
Making Roasted Broccoli & Cauliflower with Mushrooms is incredibly easy. Follow these simple steps to prepare this delicious dish:
Preheat the Oven
Begin by preheating your oven to 425°F (220°C). This high temperature ensures the vegetables get nicely roasted and caramelized.
Prepare the Vegetables
Wash the broccoli and cauliflower florets thoroughly. Cut them into bite-sized pieces to ensure even roasting. Slice the mushrooms and cut the onion into large chunks.
Season the Vegetables
In a large mixing bowl, combine the broccoli, cauliflower, mushrooms, and onion. Add the minced garlic, olive oil, salt, and pepper. Toss everything together until the vegetables are evenly coated in the oil and seasoning.
Roast the Vegetables
Spread the vegetable mixture onto a baking sheet in a single layer. This ensures they roast evenly. Place the baking sheet in the oven and roast the vegetables for 25-30 minutes. Stir or toss the vegetables halfway through to ensure they cook evenly.
Final Touch
Once the vegetables are roasted to your desired crispness, remove them from the oven. Taste and adjust the seasoning, adding more salt or pepper as needed. Serve the roasted broccoli and cauliflower hot, garnished with fresh herbs if desired.
Nutritional Benefits of Roasted Broccoli & Cauliflower
One of the reasons Roasted Broccoli & Cauliflower with Mushrooms is such a great side dish is its impressive nutritional profile. Let’s take a look at the nutritional content per serving:
- Calories: 83 kcal
- Carbohydrates: 10 g
- Protein: 4 g
- Fat: 4 g (healthy fats from olive oil)
- Fiber: 3 g
- Sugar: 3 g
- Vitamin C: 79 mg (an excellent source of vitamin C, which is crucial for immune health)
- Vitamin A: 530 IU
- Calcium: 50 mg
- Iron: 1 mg
- Sodium: 42 mg
These roasted vegetables are low in calories, making them perfect for a healthy side dish. They are also high in fiber, which aids digestion, and rich in vitamins and minerals that support overall health.

Variations and Tips for Roasted Broccoli & Cauliflower
This recipe is versatile, and you can adjust it according to your preferences. Here are some ideas to customize your Roasted Broccoli & Cauliflower with Mushrooms:
- Add Cheese: For a creamy touch, sprinkle grated Parmesan or cheddar cheese over the vegetables during the last few minutes of roasting.
- Add Lemon: A squeeze of fresh lemon juice or a sprinkle of lemon zest just before serving can add a refreshing burst of flavor.
- Spices and Herbs: For extra flavor, try adding dried herbs like rosemary or thyme. You can also season the vegetables with a dash of smoked paprika or cumin for a smoky twist.
- Vegan Option: Keep the dish vegan by omitting any cheese or replacing it with a dairy-free alternative.
How to Store and Reheat Roasted Broccoli & Cauliflower
If you have leftovers or want to prepare this dish ahead of time, storing and reheating it is easy. Store the roasted vegetables in an airtight container in the refrigerator for up to 3-4 days. When reheating, place them in a preheated oven at 350°F (175°C) for 10-15 minutes to retain their texture and flavor.
Pairing Roasted Broccoli & Cauliflower with Other Dishes
Roasted Broccoli & Cauliflower with Mushrooms makes a great addition to a variety of main dishes. Here are some ideas to round out your Thanksgiving spread:
- Main Course: Serve it alongside a roasted turkey, vegetarian loaf, or grilled chicken for a balanced meal.
- Other Side Dishes: Pair it with other vegetable-based side dishes like mashed sweet potatoes, roasted Brussels sprouts, or a fresh green salad.
- Beverages: A light white wine or a glass of sparkling water with a splash of lemon pairs perfectly with this vegetable side.
Related recipes
For more delicious vegetable-based dishes, check out these related recipes. If you’re a fan of broccoli, try the Easy Vegetable Side Dishes for a crisp-tender side dish. Another great option is the fresh strawberry spinach salad , a hearty, vegan-friendly recipe packed with flavor. For a sweet and savory pairing, you can’t go wrong with the fruit salad with honey-lime dressing, which complements roasted vegetables perfectly.

Roasted Broccoli & Cauliflower with Mushrooms – A Healthy Thanksgiving Side Dish
- Total Time: 40 minutes
- Yield: 6 servings
- Diet: Vegan
Description
Ingredients
Instructions
- Preheat the oven to 425°F (220°C).
- Wash the broccoli and cauliflower florets thoroughly and cut them into bite-sized pieces. Slice the mushrooms and cut the onion into large chunks.
- In a large mixing bowl, combine the broccoli, cauliflower, mushrooms, and onion. Add the minced garlic, olive oil, salt, and pepper. Toss everything together until evenly coated.
- Spread the vegetable mixture onto a baking sheet in a single layer. Roast in the oven for 25-30 minutes, stirring halfway through.
- Once the vegetables are roasted to your desired crispness, remove from the oven and adjust seasoning as needed. Serve hot, garnished with fresh herbs if desired.
Notes
For added flavor, try adding grated cheese or a squeeze of lemon before serving.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Side Dish
- Method: Roasted
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 83
- Sugar: 3g
- Sodium: 42mg
- Fat: 4g
- Saturated Fat: 1g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 10g
- Fiber: 3g
- Protein: 4g
- Cholesterol: 0mg

Final thoughts
Roasted Broccoli & Cauliflower with Mushrooms is a delicious, healthy, and easy-to-make side dish that will be the star of your Thanksgiving table. Its combination of roasted vegetables, garlic, and olive oil creates a dish full of flavor and nutrients. Whether you’re catering to dietary restrictions or simply looking for a tasty way to add more vegetables to your meal, this dish is a perfect choice. Give it a try this holiday season, and watch it become a new favorite at your table!
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