Rinse and pat dry the tuna. In a small bowl combine olive oil, sesame oil, lemon juice, ginger, soy sauce, salt & pepper. Whisk ingredients to combine. Dip both sides of tuna steaks in mixture and place in a food storage bag. Pour remaining mixture into bag and let marinate for one hour.
Spray a non-stick skillet with cooking spray and heat pan over medium heat. Place steaks in pan and pour remaining marinade over steaks. Cook first side approximately 2-3 minutes depending on thickness of steak. Turn steaks and cook 2 minutes making sure not to overcook steaks.
In a blender or food processor, combine sugar, vinegar, salt, mustard and onion and process for 20 seconds. With blender or food processor on high, gradually add oil in a slow, steady stream. Stir in poppy seeds.
Seared Ahi Strawberry Spinach Salad
For meaty fish such as halibut or salmon, it’s gutsy enough to drizzle over medallions of beef or pork, too.