Greek Salad with Potatoes

Ingredients

• 1 1/2 lbs little potatoes, halved
• 2 hard-boiled eggs, halved and thinly sliced
• 4 scallions, sliced
• 1/2 cup low-fat greek yogurt
• 1 tsp mustard
• 1 Tbsp white vinegar
• 2 Tbsp low-fat mayonnaise
• 1/2 tsp salt or freshly ground pepper
• 1/4 cup olive oil
• 1/4 cup red wine vinegar
• 1 tsp dried oregano
• 1 tsp dried basil
• 1/2 tsp garlic powder
• 1/4 tsp salt
• 1/4 tsp pepper
• 2 romaine hearts, torn into small piece
• 1/2 cup cucumber, thinly sliced
• 1/2 cup cherry tomatoes, halved
• 1/4 cup black kalamata olives
• 2 Tbsp pepperoncini peppers
• 1/4 cup red onion, thinly sliced
• 1/3 cup crumbled feta cheese