3 tablespoons fresh lemon juice |
1 1/2 tablespoons extra-virgin olive oil |
1/2 teaspoon minced garlic |
1/4 teaspoon kosher salt |
1/4 teaspoon freshly ground black pepper |
1/4 teaspoon dijon mustard |
1 cup grape tomatoes, halved |
1 cup thinly vertically sliced red onion |
2 (6-ounce) cans italian tuna packed in olive oil, drained and broken into chunks |
1 (15-ounce) can cannellini beans, rinsed and drained |
1 (5-ounce) package fresh baby arugula |
2 ounces parmigiano-reggiano cheese, shaved |