A simple olive oil, lemon, and mustard dressing makes this dairy-free and egg-free potato salad lighter than the typical mayonnaise-laden versions. It's perfect for anyone following a vegan diet!
Put the cubed potatoes in a medium saucepan and cover with water. Place the pan over high heat and bring to a boil. Reduce the heat to medium, cover the pan, and continue cooking for about 12 to 15 minutes, or just until tender. Drain thoroughly and let the potatoes cool completely.
Meanwhile, steam the frozen vegetables following the package directions; drain. Set aside to cool completely.
In a large serving bowl, combine the potatoes, vegetables, bell pepper, onion, dill, and chives.
In a small bowl or cup, combine the olive oil, lemon juice, and mustard. Drizzle the dressing mixture over the potato salad and toss gently to combine.