Colorful Summer Greens with Tangy Vinaigrette - ioanacooks

Ingredients

• 1 small red onion, thinly sliced
• 1 cucumber, sliced
• 150 g cherry tomatoes, halved
• 150 g leafy greens, rinsed and dried
• 1/2 teaspoon freshly ground black pepper
• 1/2 teaspoon fine salt
• 1/2 teaspoon Dijon mustard
• 3 tablespoons (45 ml) extra virgin olive oil
• 1 tablespoon (15 ml) apple cider vinegar