ROASTED VEGETABLE-STEAK SALAD

Steps:

• Preheat the oven to 400 degrees F. Place the green beans and onion on 1 baking sheet and the carrots and potatoes on another; toss each with 1/2 tablespoon olive oil and 1/2 tablespoon mustard. Season with salt and pepper. Roast until tender and crisp, about 12 minutes for the beans and onion, and about 20 minutes for the carrots and potatoes.
• Sprinkle the steak with the Italian seasoning and 1/4 teaspoon each salt and pepper. Heat the remaining 1 tablespoon olive oil in a large skillet over medium-high heat. Add the steak; cook 3 to 4 minutes per side for medium rare. Transfer to a cutting board and let rest 5 minutes.
• Let the skillet cool slightly, then add the vinegar, the remaining 1/2 tablespoon mustard and 1/4 teaspoon salt. Cook over medium heat, scraping up any browned bits, about 1 minute.
• Toss the romaine and endive with the roasted vegetables and all but 1 tablespoon of the vinegar mixture in a large bowl. Slice the steak; serve over the salad. Drizzle with the reserved vinegar mixture.