Crostini with Mushrooms, Olives, and Capers

• olive oil for frying 
• 8 oz fresh mushrooms, sliced
• 1/2 white onion, chopped
• 1 clove garlic, minced
• 1/2 cup black olives, pitted and chopped
• 2 tbsp capers
• 1 tbsp balsamic vinegar
• salt and pepper to taste
• 10-12 pieces of wheat baguette
• 1/2 cup Mozzarella cheese, shredded (for a vegan version, use vegan cheese) 

On medium heat saute onions and garlic for 2 minutes. Add mushrooms and saute until they are done and golden brown, about 10-12 minutes. Add olives, capers, vinegar, salt, and pepper and heat through.

Preheat oven to 350F. On a cooking sheet arrage baguette. Top each piece with a spoonful of mushroom mixture. Top with shredded Mozzarella. Bake until the cheese is melted and the bread is browned, about 7-10 minutes. Your "little toasts" are ready!