This may be the ideal dinner salad -- it features easy broiled steak, quick-steamed snap peas, and a flavorful vinaigrette.
Heat broiler, with rack 4 inches from heat. Place steak on a foil-lined baking sheet and season with salt and pepper. Broil until medium-rare, 4 to 8 minutes. Transfer to a cutting board; tent with foil.
Set a steamer basket in a saucepan with 1 inch simmering water. Add snap peas, cover, and steam until bright green, 2 to 3 minutes. Rinse with cold water and pat dry.
Slice steak. Whisk together oil, vinegar, mustard, and garlic; season with salt and pepper. Toss lettuce with half of dressing. Top with steak, snap peas, radishes, and carrots. Drizzle with remaining dressing.