"Stacked high with slices of tomato, onion, cucumber, avocado, and provolone cheese, this is a vegetable sandwich that even confirmed carnivores will love. You can add or substitute other fresh vegetables; radishes, spinach, or grated carrot go particularly well here. When you can't get good tomatoes, don't buy lousy, cottony ones; use twice the amount of lettuce instead...."
INGREDIENTS
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For Sauce:
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1/2 cup plain yogurt
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3 tablespoons chopped fresh dill
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1-1/2 teaspoons dijon mustard
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1 tablespoon cooking oil
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1 teaspoon wine vinegar
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salt
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Fresh-ground black pepper
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For Sandwich:
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8 thick slices multigrain bread
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8 lettuce leaves
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1/2 pound sliced provolone
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2 tomatoes, sliced
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1 cucumber, peeled and sliced thin
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1 small red onion, sliced very thin
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1 ripe avocado, preferably Hass, sliced
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1 cup alfalfa sprouts