In a mixing bowl, combine garlic granules, onion granules, paprika, cayenne pepper, soy sauce, honey, and lemon juice. Add olive oil, dried parsley, thyme, and salt, then stir until well integrated.

Place the tuna steaks in a Ziploc bag and pour the prepared marinade over them. Seal the bag tightly and gently massage it to ensure even distribution.

Let the marinated tuna sit in the refrigerator for at least 30 minutes and no more than 4 hours.

Choose a cooking method, for grilling, preheat to medium heat and cook each side for 2-3 minutes until lightly charred.

The tuna is ready when it is no longer translucent in the center, achieving a tender and flaky texture.