Caesar Salad with cayenne

1 tablespoon lemon rind 2/3 cup parmesan cheese , freshly grated 1 tablespoon oregano 1 1/2 teaspoons dry mustard 1 teaspoon black pepper , freshly ground 1[...]

6 cups shredded romaine lettuce (about 2 large heads) 1/2 red bell pepper , cut into small julienne strips (1/4-inch x1-inch) 1 small purple onion , cut into[...]