- Mix soy sauce, honey, mustard paste, garlic, and ginger in a bowl. 
- This will be your marinade. 
- Place the tuna steaks in the bowl, ensuring they're coated. 
- Let them marinate for 30 minutes. 
- Heat olive oil in a skillet over medium-high heat. 
- Add green onions for a brief sauté. 
- Place the tuna steaks on the skillet. 
- Sear each side for no more than 45 seconds. 
- This method keeps the center raw. 
- Sprinkle bagel seasoning generously over the tuna to finish. 
- It adds a flavorful crunch.