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Juicy Grilled Tuna Steaks

The perfect juicy grilled tuna steaks with olive oil and lemon marinate. The ideal light lunch or brunch paired with potato puree or salad. 
Prep Time30 mins
Cook Time15 mins
Total Time45 mins
Course: Main Course
Cuisine: American, Mediterranean
Keyword: Grill, Seafood
Servings: 4 servings



  • Juice of one lemon
  • 4-6 tbsp olive oil extra virgin
  • 1 tbsp fresh basil chopped
  • 1 tbsp honey optional
  • Salt & pepper to taste

Fish & Grill

  • 4 steaks tuna fish defrosted or fresh
  • ½ yellow onion head for grill cut in half
  • 1 tbsp olive oil for grill


  • Cover your tuna fillets with marinate on each side and refrigerate for 30 min (recommended). I use cooking brush to coat.
  • Preheat your (electric) barbecue grill and grease with olive oil. Coat the grill plate with the half onion head (optional but tasty) and let smoke ’escape’.
  • Place each fillet on the grill and turn around every 2-3 minutes. Check inside of tuna steak – if pink and tender – remove from grill and place in a glass casserole with lid (mine looks like this). Using my grill (medium heat) tuna steaks are done in between 8-12 minutes.
  • Then let cooked tuna steaks sit for 10-15 min in the glass casserole with lid on. That adds additional tenderness. Then serve with a favorite side dish.
  • TIP: If steaks seem dry while cooking, coat each fillet with additional olive oil and turn around for a minute or so while still on the grill.


For my best tips on making tender tuna steaks + sustainability resources, please go to text before recipe above.