Fabulous and easy sandwich recipe

I was reading Bon Apetit's September 2008 issue and decided to try their "Fast Easy and Fresh" recipe for Smoked Turkey, blue cheese, and red onion sandwiches. They were a hit! Aside from Sarah who doesn't like "leaves" on her sandwiches, and Ryan that picked off the blue cheese everyone loved them. So, the recipe is going into my "family favorites" 3 ring binder and I'm posting it here to share with all my foodie friends and family!

Makes 4 sandwiches

1 1/2 TBSP olive oil
2 red onions, cut into 1/3 thick rounds
3 1/2 TBSP red wine vinegar
6 cups trimmed large arugula leaves (I actually used the baby arugula that I picked up at Fred Meyer)
3/4 cup mayonnaise
8 slices wheat bread or 4 ciabatta rolls, cut horizontally in half (we used the rolls)
12 ounces thinly sliced smoked turkey
3/4 cup coarsely crumbled blue cheese

Heat oil in large nonstick skillet over medium high heat. Add onions and saute` until soft and lightly browned, breaking up onion rings, about 8 minutes. Remove from heat; stir in vinegar and season to taste with salt and pepper.

Chop enough arugula to measure 1 cup; place in medium bowl. Mix in mayonnaise. Season with salt and pepper. Spread a heaping TBSP of arugula mayonnaise over each cut side of bread. Divide turkey slices among bread. Top with crumbled blue cheese, red onions and more arugula.