Grilled Tuna Sandwich with Red Onions And Avocado Vinaigrette

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.