Provençal Potato Salad With Tuna Dressing

• 3 Yukon Gold potatoes (about 1 1/4 pounds), peeled and quartered
• 2 zucchini (about 8 ounces), halved lengthwise and slice 1/2-nch thick
• one (5-ounce) can tuna in oil
• 2 tablespoons Greek yogurt or sour cream
• 1 tablespoon capers
• 1 small garlic clove
• 1 tablespoon red wine vinegar
• 2 tablespoons olive oil
• Kosher salt and freshly ground black pepper
• 1/4 medium red onion, chopped
• 2 plum tomatoes, cut into 1-inch chunks
• 1/2 cup olives (I used Nicoise), chopped
• 1/4 cup torn basil leaves

1. Place a steamer basket in a saucepan filled with an inch of simmering salted water. Add potatoes to the steamer basket and cook, covered, until potatoes are tender, about 10 minutes. Add zucchini and steam until tender, about 3 minutes. Set aside to cool slightly.
2. While potatoes and zucchini cook, divide tuna into two portions (including oil) and place half of it in a blender jar. Add yogurt, capers, garlic, vinegar and oil; season with salt and pepper. Blend dressing until smooth.
3. Transfer warm vegetables to a bowl with onion, tomato, olives, and remaining tuna; toss with dressing to coat. Scatter basil leaves over salad and toss gently.

potatoes, zucchini, greek yogurt, capers, garlic, red wine vinegar, olive oil, kosher salt, red onion, tomatoes, olives, torn basil

Taken from food52.com/recipes/29149-provencal-potato-salad-with-tuna-dressing (may not work)