Roasted Vegetable Sandwich

• 1 head garlic

=====Vegetables=====

• 3 cups portobello mushrooms or other preferred
• 1 1/2 cups zucchini -- diagonally sliced
• 2 anaheim peppers -- stemmed seeded, and sliced
• 1 medium red onion -- sliced
• 3 plum tomatoes -- sliced
• 1 small yam -- peeled and cut into slices
• extra- virgin olive oil
• kosher salt & freshly ground black pepper to taste
• 1 teaspoon chopped thyme leaves
• 4 sprigs chopped rosemary leaves

=====Garlic Mayo=====

• 1 cup homemade mayonnaise
• 2 tablespoons Dijon mustard
• 1/4 cup plain Greek yogurt

=====

• 6 demi baguettes