Chopped Salad with Buttermilk Dressing Recipe

2 tablespoons buttermilk

2 tablespoons sour cream

2 tablespoons mayonnaise

1 tablespoon lemon juice

1 tablespoon minced celery

1 tablespoon minced fresh parsley

1 teaspoon minced fresh dill

½ teaspoon Dijon mustard

¼ teaspoon onion powder

¼ teaspoon salt

or more to taste

¼ teaspoon freshly ground black pepper

or more to taste

2 hearts romaine lettuce hearts

chopped into 1-inch pieces

1 large cucumber

chopped

1 red bell pepper

diced

1 cup chopped cauliflower florets

1 carrot

chopped

1 celery stalk with leaves

diced

3 each green onions

sliced

¼ cup sunflower seeds

1 ½ tablespoons chopped fresh parsley

1 pinch salt and ground black pepper to taste