• 1 pound sirloin steak, cut into bite-sized pieces
• 2 tablespoons olive oil
• 4 cloves garlic, minced
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 6 cups mixed salad greens (such as spinach, arugula, and romaine)
• 1 cup cherry tomatoes, halved
• 1/2 cucumber, sliced
• 1/4 red onion, thinly sliced
• 1/4 cup crumbled feta cheese (optional)

For the tarragon dressing:

• 1/4 cup mayonnaise
• 2 tablespoons apple cider vinegar
• 1 tablespoon fresh tarragon, chopped (or 1 teaspoon dried tarragon)
• 1 teaspoon Dijon mustard
• Salt and pepper to taste