1 (10 ounce) package fresh spinach, torn
3 small red potatoes, cooked and diced
2 hard-cooked eggs, chopped
1/2 cup sliced fresh mushrooms
2 bacon strips, diced
1/4 cup chopped red onion
1/2 teaspoon cornstarch
1/4 cup apple juice
2 tablespoons cider vinegar
2 teaspoons granular no-calorie sucralose sweetener, e.g., Splenda (r)
1/8 teaspoon pepper