Mushroom Madness

Ingredients

• 1 tablespoon red wine vinegar
• 1 tablespoon fresh lemon juice
• 2 teaspoons dijon mustard
• 1 garlic clove minced
• 1/2 teaspoon worcestershire sauce
• 1 dash hot pepper sauce
• 1 pinch dried oregano
• 1 pinch dried tarragon
• salt
• freshly ground pepper
• 3 ounces olive oil
• 1 1/2 pounds mushrooms sliced
• 1 red onion medium, thinly sliced
• 2 tablespoons butter
• 2 tablespoons all purpose flour
• 3/4 cup milk
• 1/2 cup chicken broth
• 2 tablespoons dry sherry
• 2 teaspoons prepared mustard
• 1 teaspoon curry powder or to taste
• salt
• freshly ground pepper
• 6 rye bread slc seedless Russian, I use pumpernickel.
• 3 cups shredded swiss cheese