Grilled Steak Panzanella Salad | Savory

Ingredients

• 1/4 cup dry sherry
• 2 tbsp reduced-sodium soy sauce
• 2 tbsp olive oil, plus more for brushing
• 3 cloves garlic, minced
• 1 lb flank steak
• 2 medium zucchini
• 3 ciabatta rolls, split
• 1/3 cup peppercorn salad dressing
• 1/2 (5 oz) pkg baby spinach and spring mix
• 1 pint grape tomatoes
• 1/2 small red onion, thinly sliced