Organic 3" Starts. Ruby Streaks Mustard Greens have a mildly spicy, peppery flavor with a hint of sweetness and a delicate tang. Compared to traditional mustard greens, they are slightly milder but still offer a pleasant zing, similar to arugula or radish greens. The lacy, feathery leaves have a tender texture, making them perfect for fresh salads, where they add a pop of color and a gentle heat. When cooked, the spiciness mellows, and the greens develop a more earthy, subtly sweet taste, making them great for stir-fries, sautés, and soups. Their vibrant purple-red hue also makes them an eye-catching garnish or mix-in for various dishes.