Arugula Spinach Salad With Lemon Dressing

Name: Arugula Spinach Salad With Lemon Dressing
Prep time: 5 min
Total time: 5 min
Cuisine: Mediterranean
Ingredients: 4 cups arugula (fresh, loosely packed, 80g); 2 cups baby spinach leaves (fresh, loosely packed, 40g); 1/4 cup red onion (thinly sliced, 35g); 1/2 cup cucumber (chopped, 65g); 4 tablespoons lemon juice (fresh, 60ml, about 2 lemons); 2 tablespoons olive oil (extra virgin, 30ml); 1/4 teaspoon fine sea salt; 1/8 teaspoon freshly ground black pepper; 1 teaspoon parmesan cheese (finely grated, plus more for serving, 3g)