Seared Tuna with Niçoise Vegetables and Garlic Butter Recipe

Name: Seared Tuna with Niçoise Vegetables and Garlic Butter Recipe
Ingredients: 1/4 pound cherry tomatoes (preferably on the vine); 4 tablespoons extra-virgin olive oil, divided; Kosher salt and freshly ground black pepper; 1/2 pound baby new potatoes; 1/4 pound haricots verts (or green beans), trimmed; 2 cloves garlic, smashed and peeled; The zest of half a lemon, in strips (made by a vegetable peeler); 1 tablespoon unsalted butter, room temperature; 12 fresh basil leaves, sliced; 1 tablespoon chopped flat leaf parsley; 2 five-ounce fillets of fresh tuna; 1 teaspoon dried herbes de Provence