10 ounces fresh spinach – washed and chopped
10 whole fresh mushrooms – sliced
4 hard-boiled eggs – chopped
6 slices bacon – cooked and crumbled
1 cup olive oil
1/4 cup sour cream
1/4 cup red wine vinegar
1/2 teaspoon dry mustard
1 tablespoon sugar
1/2 tablespoon salt
1/4 teaspoon black pepper

Toss spinach, mushrooms, chopped egg, and crumbled bacon.
Whisk remaining ingredients together.
Toss with vegetables to coat spinach.