Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     1/4  cup           sherry wine vinegar
   2      tablespoons   fresh lemon juice
   2      teaspoons     grated lemon peel
   1      tablespoon    chopped fresh oregano
     1/2  cup           olive oil
                        salt -- to taste
                        freshly-ground black pepper -- to taste
   2                    red onions -- cut into wedges,
                        -- stem end attached
   4      cups          mesclun
     3/4  cup           soft -- fresh goat cheese
     1/4  cup           chopped fresh mint

Preparation:

Prepare your barbecue or preheat the broiler. Whisk vinegar, lemon juice, lemon peel and oregano in medium bowl. Gradually whisk in oil. Season to taste with salt and pepper. Brush onions on both sides with some of dressing. Season onions with salt and pepper. Grill onions until lightly-charred and tender, turning occasionally, about 12 minutes. Transfer to plate and cool. Toss greens with remaining dressing. Transfer to serving bowl. Arrange onions on top. Sprinkle with goat cheese and mint and serve.