- Preheat your oven to 425°F (220°C).
- Line a large baking sheet with parchment paper or lightly grease it with cooking spray.
Step 2: Prepare the Vegetables
- Wash and thoroughly dry the cauliflower and mushrooms.
- Cut the cauliflower into evenly sized florets.
- Slice the mushrooms if they are not already sliced.
Step 3: Make the Garlic Butter
In a small bowl, combine:
- Olive oil
- Melted butter
- Minced garlic
- Dried thyme
- Salt
- Black pepper
Whisk until well combined.
Step 4: Coat the Vegetables
- Place the cauliflower and mushrooms in a large mixing bowl.
- Pour the garlic butter mixture over the vegetables.
- Toss well until every piece is evenly coated.
Step 5: Roast
- Spread the vegetables in a single layer on the prepared baking sheet.
- Roast for 30–35 minutes, stirring halfway through.
- The cauliflower should be tender with golden, caramelized edges, and the mushrooms should be juicy and lightly browned.
Step 6: Finish the Dish
- Remove the vegetables from the oven.
- Drizzle with the fresh lemon juice.
- Sprinkle with chopped parsley.
- Add Parmesan cheese, lemon zest, or red pepper flakes if desired.
Step 7: Serve
Serve immediately as a side dish with:
- Grilled chicken
- Steak
- Roast beef
- Salmon
- Pork chops
- Rice or quinoa
It also makes a delicious vegetarian main course when served over pasta or mixed with cooked grains.
Tips for the Best Roasted Cauliflower & Mushrooms
- Dry the vegetables well before roasting to help them caramelize instead of steam.
- Avoid overcrowding the baking sheet—use two pans if necessary.
- Stir halfway through roasting for even browning.
- Fresh thyme or rosemary can be used instead of dried thyme for extra flavor.
- Store leftovers in an airtight container in the refrigerator for up to 4 days and reheat in the oven or air fryer to restore their crisp edges.
Enjoy this Garlic Butter Roasted Cauliflower & Mushrooms—a simple, flavorful dish that’s packed with savory goodness and perfect for any occasion! 🥦🍄
