"Delicious ! I found this recipe on a package of mushrooms and decided it would be a great way to use up leftover chicken. It's the first time I have e..."
INGREDIENTS
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1 tablespoon olive oil
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1 (6 ounce) package sliced white mushrooms
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salt & freshly ground black pepper
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3 ounces gruyere cheese, shredded
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4 slices firm-textured sandwich bread
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5 ounces sliced roasted chicken
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2 tablespoons mayonnaise