Tuna Burgers with Ginger Garlic and Soy Sauce – Rachael Ray

Ingredients

• 2 pounds fresh tuna steak, cut into chunks
• 3 garlic cloves, finely chopped
• One 2-inch piece of fresh ginger, peeled and grated
• 3-4 tablespoons Tamari (dark soy sauce)
• 2 scallions, finely chopped
• 1/4 red bell pepper, finely chopped
• 2 teaspoons sesame oil (eyeball it)
• 1 tablespoon grill seasoning blend, such as McCormick brand Montreal Steak Seasoning (a palmful)
• 2 tablespoons vegetable or peanut oil
• 1/2 pound shiitake mushrooms, stemmed and sliced
• Coarse salt
• 4 sesame Kaiser rolls, split
• 1/4 cup prepared wasabi mustard, such as Stonewall Kitchen brand, plus extra for serving (optional)
• Red or green leaf lettuce
• 1/2 cup mango chutney (found in the condiment or international foods aisle), plus extra for serving (optional)
• Pickled ginger, for serving
• Root vegetable chips, for serving