Roasted Veggie Sandwiches

Ingredients

• 3 tablespoons balsamic vinegar
• 2 teaspoons olive oil
• 1/4 cup minced fresh basil or 1 tablespoon dried basil
• 1 small eggplant, peeled and sliced lengthwise
• 1 medium sweet red pepper, sliced
• 1 small red onion, sliced and separated into rings
• 1 small zucchini, thinly sliced
• 1 small yellow summer squash, thinly sliced
• BASIL YOGURT SPREAD:
• 1/4 cup fat-free plain yogurt
• 2 tablespoons reduced-fat mayonnaise
• 1 tablespoon minced fresh basil or 1 teaspoon dried basil
• 1 teaspoon lemon juice
• 4 French rolls, split and warmed