Skillet Steak Tips with Cheesy Roasted Potatoes and Mesclun Salad | America's Test Kitchen

Ingredients

• 1 1/2 pounds Yukon Gold potatoes, unpeeled, sliced ¼ inch thick
• 6 tablespoons extra-virgin olive oil, divided
• 2 1/2 teaspoons kosher salt, divided
• 1 1/4 teaspoons pepper, divided
• 2 ounces feta cheese, crumbled (½ cup)
• 4 scallions, white parts minced, green parts sliced thin
• 1 1/2 pounds sirloin steak tips, trimmed and cut into 2-inch chunks
• 1 tablespoon balsamic vinegar
• 1 teaspoon Dijon mustard
• 5 ounces (5 cups) mesclun
• 3 radishes, trimmed and sliced thin