Grilled Vegetable Sandwich

Serve this on ciabatta rolls or other hearty roll.

• Ready In: 20 mins
• Serves: 4

Ingredients

• 4  ciabatta rolls, split
• 1  lemon, halved
• 2  tablespoons olive oil
• 1  tablespoon  balsamic vinegar
• 3  small zucchini or 3  small  summer squash, cut lengthwise in 1/4 inch slices
• 1  small red onion, cut into 1/4 inch slices
• 2  ounces feta cheese, crumbled
•  fresh mint leaves, for garnish

Directions

1. Lightly brush one tablespoon olive oil on the cut sides of the rolls and lemon halves; set aside.
2. Combine remaining oil and vinegar in a small bowl.
3. Brush a little of mixture on zucchini and onion, then season with salt and pepper.
4. Grill zucchini and onion, over medium heat, until tender, about 2 to 3 minutes per side.
5. Meanwhile toast rolls, cut side down, about 3 minutes.
6. Place vegetables on rolls, top with feta and mint, if using; drizzle with remaining vinegar and oil and squeezed lemon juice.