Grilled Tuna Sandwich with Red Onions And Avocado Vinaigrette

Grrrrrgh!
Course : Grilling
From: HungryMonster.com
Serves: 4
 

Ingredients:

4 fillets tuna steaks - -- (5 oz ea)
2 tablespoons olive oil
1 teaspoon salt -- to taste
1 teaspoon freshly-ground black pepper -- to taste
1 small red onion -- sliced into rings, and grilled
1/3 cup avocado vinaigrette -- see * note
1 bunch mesclun or young lettuce
4 slices ripe tomato
 

Preparation:

* Note: See the "Avocado Vinaigrette" recipe which is included in this collection. Prepare a wood or charcoal fire and let it burn down to embers. Brush the tuna steaks with the olive oil and season with salt and pepper. Grill for 2 minutes on each side for rare steaks. For each sandwich, layer tuna steaks, mesclun, tomatoes, red onion and avocado vinaigrette. Serve immediately.