6 tablespoons white wine vinegar
6 tablespoons vegetable oil
1 red onion, thinly sliced
1/4 cup white sugar
1/4 teaspoon salt
2 dashes hot pepper sauce
3/4 teaspoon ground black pepper to taste
1/2 cup coarsely chopped walnuts
1 head romaine lettuce, torn
1 head butter lettuce, torn
2 bunches fresh spinach leaves
2 pears, cored and sliced
1 (4 ounce) package feta cheese
In a bowl, mix the vinegar, oil, onion, sugar, salt, hot sauce, and pepper. Cover and refrigerate 1 hour.
In a skillet over medium heat, cook the walnuts, stirring constantly, until lightly toasted.
In a large bowl, mix the walnuts, romaine lettuce, butter lettuce, spinach, and pears. Toss with the dressing mixture to coat. Sprinkle with feta cheese to serve.