Roasted Frozen Cauliflower

This simple roasted frozen cauliflower recipe turns the frozen florets into a tender, flavorful side dish with beautifully browned edges.

Course Side Dish

Cuisine American

Prep Time 10

Cook Time 50

Total Time 1

Servings servings

Calories 117kcal

Olive oil spray extra-virgin
2 pounds frozen cauliflower florets
1 teaspoon Diamond Crystal kosher salt or ½ teaspoon of any other salt, including Morton kosher salt
¼ teaspoon black pepper
½ teaspoon garlic powder
¼ teaspoon dried thyme

Preheat the oven to 425°F. Line a rimmed baking sheet with high-heat-resistant parchment paper. Spray the parchment paper with olive oil.
Olive oil spray
Arrange the frozen florets in a single layer on the prepared baking sheet. Don't thaw them first.
2 pounds frozen cauliflower florets
Spray the florets with olive oil and sprinkle them with salt, pepper, garlic powder, and dried thyme.
1 teaspoon Diamond Crystal kosher salt, ¼ teaspoon black pepper, ½ teaspoon garlic powder, ¼ teaspoon dried thyme
Bake the florets until tender and golden brown, 30-40 minutes (start checking after 20 minutes). Serve immediately.

Seasonings, especially salt, are just guidelines. Adjust to taste.
Frozen cauliflower florets come in different sizes. You can bake them all together until the larger ones are browned. If the smaller ones are becoming too dark, transfer them to a plate and continue roasting the larger ones.
During the last 10 minutes of cooking, you can sprinkle the florets with grated Parmesan.
To prevent soggy florets, use a large baking sheet and space the florets apart. If needed, use two baking sheets and rotate them midway.
I bake the florets undisturbed without stirring or flipping, as this promotes browning and caramelization.
Air fryer instructions: Toss the florets with olive oil and seasonings, spread them in a single layer, then cook them at 400°F for 10 to 15 minutes, shaking the basket halfway through.
You can keep the leftovers in an airtight container in the fridge for 3-4 days. Reheat them uncovered in a 350°F oven or enjoy them cold in salads and antipasti plates.