Lemon-Thyme Roasted Cauliflower with Garlic Butter

By AislePrompt Editorial · Published 2026-06-02 · Updated 2026-06-02

Oven-roasted cauliflower florets tossed in a fragrant garlic butter sauce with fresh thyme and bright lemon zest, perfect as a flavorful vegetarian side dish. This Mediterranean-inspired vegetarian recipe, ready in about 40 minutes, pairs unsalted butter, garlic cloves, minced, fresh thyme leaves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 180 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 1 large (about 1.5 lbs) cauliflower head, cut into bite-sized florets
• 4 tbsp unsalted butter
• 4 garlic cloves, minced
• 2 tsp fresh thyme leaves
• 1 tbsp lemon zest
• 2 tbsp lemon juice
• 2 tbsp olive oil
• 1 tsp salt
• 1/2 tsp black pepper
• 2 tbsp fresh parsley, chopped, for garnish

The sheet pan we’d roast this on → Best Sheet Pans in 2026: Top Picks + Buying Guide

Instructions

1. Step 1: Preheat oven to 425°F. Toss 1 large cauliflower head cut into bite-sized florets with 2 tbsp olive oil, 1 tsp salt, and 1/2 tsp black pepper on a large baking sheet until evenly coated.
2. Step 2: Roast the cauliflower in the oven for 25-30 minutes, stirring halfway through, until golden brown and tender.
3. Step 3: While cauliflower roasts, melt 4 tbsp unsalted butter in a small skillet over medium heat. Add 4 minced garlic cloves and 2 tsp fresh thyme leaves, cooking for 1-2 minutes until fragrant and garlic is lightly golden.
4. Step 4: Remove skillet from heat and stir in 1 tbsp lemon zest and 2 tbsp lemon juice.
5. Step 5: When cauliflower is done, transfer to a large bowl and pour the garlic butter sauce over it. Toss gently to coat. Garnish with 2 tbsp chopped fresh parsley before serving warm.