Mom's Sunday Steak Salad

Ingredients

• ***For the marinade/dressing:***
• 1/3 cup extra-virgin olive oil
• 3 tablespoons balsamic vinegar
• 1 teaspoon lemon juice
• 1/2 tablespoon Dijon mustard
• 1/2 teaspoon dried oregano
• 1/2 teaspoon dried thyme
• salt, to taste
• ground pepper, to taste
• ***For the steak:***
• 2 (4-ounce) top sirloin steaks
• 2 tablespoons butter
• 1 clove garlic, smashed
• ***For the salad:***
• 6 cups romaine lettuce or mixed baby greens, torn and packed
• 1/2 cup red onions, thinly sliced
• 1 avocado, thinly sliced
• 2 cups cherry tomatoes, halved
• 1 cucumber, washed and dried, cut into cubes
• lemon wedges, to taste, optional
• 1/2 cup feta cheese, crumbled