Winter Tuna Nicoise Salad

Name: Winter Tuna Nicoise Salad
Ingredients: 4 ounce tuna steak (I used frozen packs from Whole Foods); 1 teaspoon olive oil; salt and pepper (to taste or your favorite fish seasoning); 1 hard boiled egg; 1 cup cauliflower florets; 1 cup brussels sprouts (trimmed, halved if big); 1 cup green beans (I used haricot verts); 1 carrot (thinly sliced (I used a peeler to get long thin strips)); 3 teaspoons olive oil; salt and pepper (to taste); 3 romaine lettuce leaves; 1/2 cup cherry tomatoes; 1 cup cooked quinoa; 2 tablespoons olives (pitted); 1 scallion (chopped); 2 tablespoons extra virgin olive oil; 3 tablespoons red wine vinegar; 1 teaspoon Dijon mustard