Gluten-Free Roasted Cauliflower

Transform humble cauliflower into a crispy, caramelized delight with this simple roasted recipe. Infused with savory garlic and a hint of tang, each bite offers a satisfying tender-crisp texture that makes a perfect side dish.

Prep: 10 min Cook: 20 min Total: 30 min Serves: 4

At a glance: This easy salads and sides recipe yields 4 servings in about 30 minutes (10 min prep, 20 min cook). It uses 7 ingredients — including cauliflower, extra virgin olive oil, dijon mustard — and walks through 6 steps. Updated October 24, 2026. Browse more salads and sides recipes or return to all gluten-free recipes.

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Cross-Contamination Warning for Gluten-Free Roasted Cauliflower: When preparing this salads and sides recipe, when selecting ingredients like Dijon mustard, always ensure they are gluten-free to avoid cross-contamination with gluten. Be mindful of shared kitchen equipment if preparing for individuals with severe gluten sensitivities. In a shared kitchen, avoid porous materials — wooden spoons, wooden cutting boards, and scratched non-stick pans can harbor gluten proteins even after washing. Prefer glass, metal, or silicone tools.

Gluten-Free Notes for Gluten-Free Roasted Cauliflower: This recipe is naturally gluten-free, relying on whole vegetables and simple seasonings. Ensure your Dijon mustard is gluten-free.

Scale Recipe:

servings

Ingredient amounts update automatically

Ingredients

Shop links on this page are for Dijon mustard. Buy the package that says gluten-free. A shared production line is the usual risk with these pantry items. As an Amazon Associate, we earn from qualifying purchases, at no extra cost to you. Confirm the product is labeled gluten-free before you buy.

1 medium head cauliflower
2 tbsp extra virgin olive oil
1 tsp Dijon mustard (verify GF) Shop
1 clove garlic, minced
0.5 tsp salt
0.25 tsp black pepper
1 tbsp fresh lemon juice

Instructions

1 Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup. Wash the cauliflower and cut it into bite-sized florets, ensuring they are relatively uniform in size for even cooking.
2 In a large bowl, whisk together the extra virgin olive oil, gluten-free Dijon mustard, minced garlic, salt, and black pepper until well combined. This creates a flavorful coating for the cauliflower.
3 Add the cauliflower florets to the bowl with the dressing and toss thoroughly to ensure each floret is evenly coated. The florets should look glossy and well-seasoned.
4 Spread the coated cauliflower in a single layer on the prepared baking sheet, making sure the florets are not overcrowded. This allows them to roast and caramelize properly, rather than steam.
5 Roast in the preheated oven for 20-25 minutes, or until the cauliflower is tender when pierced with a fork and has developed golden-brown, slightly crispy edges. The aroma of roasted garlic and cauliflower will fill your kitchen.
6 Once roasted to perfection, remove the baking sheet from the oven. Drizzle the fresh lemon juice over the hot cauliflower and toss gently to distribute the bright, zesty flavor. Serve immediately as a delicious side dish.

Nutrition (per serving)

316

Calories

Protein

26g

Carbs

10g

Fat

Fiber

272mg

Sodium

Tips & Notes

For deeper browning, skip the parchment and roast the florets directly on an oiled sheet pan. The edges get crisper.
Cut the florets to a similar size, about 1.5 inches, so they finish together in the 20-25 minutes.
Stir the cauliflower once halfway through roasting so more sides touch the hot pan and brown.

Common questions

What cross-contamination risk is specific to Gluten-Free Roasted Cauliflower?

Check cauliflower, extra virgin olive oil, Dijon mustard before they go into Gluten-Free Roasted Cauliflower. When selecting ingredients like Dijon mustard, always ensure they are gluten-free to avoid cross-contamination with gluten. In a shared kitchen, avoid porous materials — wooden spoons, wooden cutting boards, and scratched non-stick pans can harbor gluten proteins even after washing. Prefer glass, metal, or silicone tools.

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