Vegetarian Chili Cheese Sandwich - Diet Recipe

Ingredients

• 1 cup canned kidney beans, drained
• 1/2 teaspoons chili powder
• 1/2 tablespoon vinegar
• 2 tablespoons water
• 4 whole grain rolls
• 4 plum tomatoes, sliced
• 1 cup dark, shredded lettuce
• 4 mushrooms, sliced thin
• 1/2 cucumber, sliced thin
• 4 slices fat-free American cheese