Marinated Portobello Mushroom Sandwiches

Ingredients

• 5 tablespoons olive oil
• 5 tablespoons red wine vinegar
• 1 1/2 teaspoons dried oregano
• 1 1/2 teaspoons fennel seeds (crushed or ground)
• 1 pound portobello mushrooms
• 1/2 red onion (thinly sliced)
• 4 ciabatta rolls
• 4 oz provolone cheese (sliced)
• 4 oz shredded romaine lettuce
• 1 cup sun-dried tomatoes
• 1 clove garlic
• 1/4 cup parsley
• 1/4 cup basil leaves
• 2 tablespoons pine nuts
• 2 tablespoons olive oil
• 1/4 cup shredded parmesan cheese
• 1/2 cup water