
Grilled Tuna with Cauliflower
Prep
20 mins
Cook
25 mins
Servings
4
Difficulty
Medium
This is one of my favorite weeknight dinners because it comes together in under an hour and tastes restaurant quality. Ahi tuna is packed with omega 3 fatty acids that are wonderful for heart health, and I love how quickly it cooks on the grill. The cauliflower gets tender and slightly caramelized while soaking up all those bright lemon and garlic flavors, making it feel like a complete, satisfying meal without breaking the bank. Best of all, the whole thing is incredibly simple to pull off, even on a busy evening.
Ella x
Ingredients
- 4ahi tuna steaks(6 oz each, about 1.5 inches thick)
- 1 large headcauliflower florets(cut into bite-sized pieces)
- 5 tablespoonsextra virgin olive oil
- 4garlic cloves(minced)
- 3 tablespoonsfresh lemon juice
- 1 teaspoonsea salt
- ½ teaspooncracked black pepper
- ¼ teaspoonred pepper flakes
- 4fresh thyme sprigs
- 1 tablespoonlemon zest
- 59 mlwhite wine(dry)
Detail level
Instructions
- 1
Preheat your grill to high heat (around 450°F) and allow it to heat for at least 10 minutes until the grates are very hot.
Tip: Use a grill brush to clean the grates and prevent sticking.
- 2
Toss cauliflower florets in a large bowl with 3 tablespoons olive oil, minced garlic, half the lemon juice, salt, pepper, and red pepper flakes. Spread on a foil-lined grill pan or cast iron skillet.
Tip: Cutting florets to uniform size ensures even cooking.
- 3
Place the cauliflower pan on the grill and cook for 18-20 minutes, stirring occasionally, until the florets are golden brown and tender.
Tip: Some charring on the edges adds wonderful flavor.
- 4
While the cauliflower cooks, pat the tuna steaks dry with paper towels. Brush both sides lightly with remaining 2 tablespoons olive oil and season generously with salt and pepper.
Tip: Drying the tuna ensures better searing and creates a nice crust.
- 5
When the grill is ready, place tuna steaks directly on the hot grates. Grill for 3-4 minutes on the first side without moving them, then flip and grill another 2-3 minutes for medium-rare doneness.
Tip: Tuna cooks quickly; avoid overcooking as it dries out easily.
- 6
Remove tuna from the grill and let rest for 2 minutes. Drizzle with remaining fresh lemon juice and garnish with lemon zest and fresh thyme.
Tip: Resting allows the juices to redistribute for a more tender result.
- 7
Transfer cauliflower to a serving platter and arrange grilled tuna steaks on top. Drizzle any pan juices and white wine reduction over the dish before serving.
Tip: Serve immediately while the tuna is still warm and the cauliflower is crispy.
Recipe Variations
Get AI-powered ingredient substitution suggestions.
You Might Also Like

Tropical Quinoa
This tropical quinoa bowl has become my go to weeknight dinner because it comes together in just forty minutes and tastes like a mini vacation on a plate. Quinoa is one of my favorite ingredients since it's a complete protein with all nine essential amino acids, making it so satisfying and perfect for keeping energy levels steady. The combination of papaya, red bell pepper, and fresh cilantro brings vibrant flavors and colors, while the rice wine vinegar and orange zest add just the right brightness. Best part is the ingredient list is simple and affordable, yet feels fancy enough to impress anyone at your table.

Mexican Rice
This Mexican rice recipe is one of my go to weeknight favorites because it comes together in just about an hour and tastes absolutely authentic. The tomatoes give it that beautiful color and rich flavor while also providing lycopene, a powerful antioxidant that's great for your heart. What I love most is how budget friendly it is, using simple ingredients you probably already have on hand. The whole process is straightforward enough that even beginners can master it, and the result is a vibrant, fragrant rice dish that pairs perfectly with any protein.

Coconut & raspberry crush
Have you tried making a drink that's both refreshing and genuinely good for you? This coconut and raspberry crush is my go to when I want something special without the fuss. The best part is how quick it comes together in just ten minutes of prep. Coconut water is absolutely fantastic for hydration, packed with natural electrolytes that your body actually needs. I love combining it with tart raspberries and a hint of mint for that perfect balance of sweet and zingy. It's simple, it's delicious, and honestly, it feels like you're treating yourself to something fancy.
Reviews
Sign in to write a review.