Ingredients

• 1 (.75 ounce) packet dry brown gravy mix
• 1/2 cup water
• 3 tablespoons soy sauce
• 2 tablespoons balsamic vinegar or red wine vinegar
• 1 garlic clove, minced
• 1 (3/4 pound) pork tenderloin, cut into 1/2 inch slices
• 1/4 cup olive or vegetable oil 1/2 pound fresh mushrooms, sliced
• 1 medium onion, sliced and separated into rings
• hot cooked rice