Recipes Ingredients Meat & Poultry Beef Recipes Grilled Steak and Vegetables 3.1 (27) 1 Review By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on June 12, 2017 Print Rate It Share Share Tweet Pin Email Prep Time: 25 mins Total Time: 25 mins Servings: 4 Skirt steak is well-marbled and should be cook medium rare; any more, it will toughen. Ingredients ⅔ cup lemon juice (from 6 lemons) 1 teaspoon dried thyme, divided 2 large red bell peppers, cut into ½-inch strips 2 medium zucchini, thinly sliced 1 medium yellow onion, thinly sliced Salt and pepper 1 skirt steak (about 1 ¼ pounds) ¾ cup olive oil, plus more for grill Directions Heat a grill or grill pan to high. In a large bowl or zip-top bag, combine lemon juice, 1/2 teaspoon thyme, bell peppers, zucchini, and onion; season with salt and pepper and marinate 15 minutes. Season steak with salt, pepper, and remaining 1/2 teaspoon thyme. Clean and lightly oil hot grill. Cook steak, flipping once, about 12 minutes for medium. Transfer to a cutting board and tent with foil. Let rest 10 minutes before thinly slicing against the grain. Lightly oil hot grill. Arrange vegetables on grill in an even layer, reserving marinade, and cook until browned and tender, 8 to 10 minutes. Whisk oil and mustard into marinade. Cover and refrigerate half the vegetables and half the dressing for Zesty Pork Sandwiches. Serve remaining vegetables and steak with remaining dressing. Cook's Notes A lemon marinade is a triple threat: It flavors vegetables before grilling, then makes the base for a tangy dressing to use tonight and for Zesty Pork Sandwiches. Rate it Print