Jazz up your side dish routine with oven-roasted Pesto Cauliflower. Roasting gives the cauliflower a caramelized, nutty flavor which pairs wonderfully with the spinach walnut pesto. This dish is easy to make and will become a new favorite.
I have been totally obsessed with roasted cauliflower lately, and pesto cauliflower is my new obsession. Cauliflower can be rather drab if not cooked properly. But, it's delicious when roasted to caramelized perfection. Roasting creates crispy brown bits on the exterior which translate to flavor. On the inside, the florets become soft and tender.
I can easily eat a whole head of roasted cauliflower. The toasted nuttiness is just SO good, and drizzling it with fresh, nutty pesto is just BEYOND. Pesto cauliflower is simple, not fussy... but the flavor is anything but simple. The spinach and walnut pesto is full of fresh flavor and the color is bright, which makes this dish so pretty, for any season.
If you love roasted cauliflower, try Garlic Parmesan Cauliflower Wing Bites.
When buying, look for firm and compact heads. The florets should be white. Avoid heads with brown discoloration and a banged-up appearance. The leaves should be green and fresh. An unwashed head of cauliflower will keep in the refrigerator for up to one week. Washed florets will keep for four or five days.
How to roast cauliflower
Pesto cauliflower starts with nutty, roasted cauliflower. Roasting the florets requires little effort, but I have a few tips that will ensure perfect results every time.
- Roast at 450 degrees. High heat is necessary to get the brown and caramelized edges that scream flavor. At lower temperatures, the florets tend to steam and don't brown well.
- Cut the florets into similar sizes for even roasting.
- Toss the florets with oil to help them brown during roasting.
Spinach walnut pesto
Since we're talking about pesto cauliflower, let's talk pesto. Pesto is a versatile sauce made with a handful of flavor-packed ingredients. This version is made with spinach and walnuts, but a traditional basil pesto can also be used.
While the cauliflower roasts, add the spinach, walnuts, and garlic to a food processor. Process until well chopped. Add the cheese and lemon juice, and process to combine. With the food processor running, slowly pour in the oil. Season with salt and pepper.
Leftover pesto will keep in the refrigerator for one week. Use the pesto as a spread on sandwiches, add to sauces, or toss with pasta.
How to serve roasted cauliflower
Pesto cauliflower is delicious on its own or as an ingredient in other dishes and meals.
- Serve as a side dish with beef, chicken, pork, and fish.
- Use to build veggie tacos
- Add to rice bowls
- Add to salads
- Use in a veggie wrap
More cauliflower recipes you may enjoy
- Roasted Cauliflower Gratin
- Buffalo Cauliflower Naan Wrap
- Roasted Cauliflower in Coconut Curry Sauce
- Broccoli and Cauliflower Salad
- 1 head cauliflower (cut into florets)
- 1-2 teaspoons olive oil
- salt (to taste)
- freshly ground black pepper (to taste)
- 2 ½ cups fresh baby spinach (packed)
- ¼ cup walnuts (toasted)
- ½ cup Parmesan cheese (shredded)
- 2 teaspoon minced fresh garlic
- 2 tablespoons lemon juice (approx. 1 lemon)
- ½ cup olive oil
- salt (to taste)
- pepper (to taste)
- Preheat the oven to 450 degrees.
- Arrange the cauliflower on a sheet pan. Drizzle with the oil and season with salt and pepper. Toss to combine.
- Roast for 20-25 minutes, turning once half-way through, until brown and caramelized.
- Transfer to a serving platter and spoon approx. 3 tablespoons of the pesto over the cauliflower. Serve extra pesto on the side.
- While the cauliflower roasts, add the spinach, walnuts, and garlic to the bowl of a food processor. Process until finely chopped.
- Add the parmesan and lemon juice and blend to combine. Drizzle in the oil with the processor running and blend until smooth. Season to taste with salt and pepper.
- Store leftover pesto in an airtight container in the refrigerator for up to one week.
Nutritional information is an estimate and will vary depending upon the exact amounts and specific ingredients used.