Spicy Tuna Sashimi Nachos - Walter Stewart's Market

Ingredients

• 1 lb fresh tuna steak – ask for sushi grade
• 1/2 cup soy sauce
• 1/2 cup green onions, sliced – tops and bottoms
• 2 tbsp ginger, minced
• 2 tsp sesame seeds
• 2 tsp sesame oil
• 1 tsp red pepper flakes
• 1 lime
• 1 firm avocado, diced
• Hearty tortilla chips