Creamy Bacon Broccoli Salad

Ingredients

• 1/4 cup thinly sliced red onion
• 2 tablespoons white wine vinegar
• 1/2 teaspoon black pepper
• 10 slices bacon, cooked and crumbled
• 1/2 cup sunflower seeds
• 1/2 to 1 teaspoon salt
• 2/3 cup low-fat mayonnaise
• 2 tablespoons Splenda
• 2 large heads fresh broccoli, cut into small florets
• 1 cup grapes, halved