Arugula Salad

Ingredients

• 1 tablespoon fresh lemon juice
• 1/4 teaspoon coarse salt
• Pinch of freshly ground pepper
• 2 tablespoons extra-virgin olive oil
• 2 bunches baby arugula (about 6 cups)
• 1 head radicchio, torn into pieces (about 3 cups)
• 2 cups mache (about 1 ounce) or 2 endives, leaves separated
• 1 cup grape tomatoes, thinly sliced