Cookwith - High-Protein Tuscan Panzanella with Herbed Grilled Chicken

Ingredients

• 8 oz day-old rustic bread (about 4 thick slices), cut into 1-inch cubes
• 1 1/2 lbs boneless skinless chicken breasts (about 3 large breasts)
• 1 1/2 tsp kosher salt, divided
• 1/2 tsp cracked black pepper
• 1/4 cup extra-virgin olive oil, divided
• 2 tbsp red wine vinegar
• 1 large garlic clove, minced
• 1 tsp Dijon mustard
• 1/4 cup fresh basil leaves, torn or chopped
• 1/4 cup fresh Italian parsley, chopped
• 2 cups ripe tomatoes, cut into bite-size chunks (about 3 medium tomatoes)
• 1/2 small red onion, thinly sliced
• 1/2 English cucumber, halved and sliced (optional, for crunch)
• 1/4 cup crumbled feta cheese (optional, for extra flavor and protein)