Chicken and Brie Sandwiches with Roasted Cherry Tomatoes

Details

Ingredients

• 1 pound skinless, boneless chicken breasts
• ½ cup Italian-style salad dressing, or to taste
• 3 ounces Brie cheese, sliced
• 1 tablespoon olive oil, divided
• 2 cups cherry tomatoes, halved
• ¼ teaspoon kosher salt, divided
• 3 tablespoons balsamic vinegar, divided
• 1 tablespoon chopped fresh basil
• 2 cups fresh spinach leaves
• ¼ cup mayonnaise
• 1 tablespoon Dijon mustard
• 2 cloves garlic, minced
• ⅛ teaspoon ground black pepper
• 1 loaf French bread, halved lengthwise