"Mouthwatering baked slider sandwiches made with corned beef, Swiss cheese and sauteed mushrooms and onions...."
INGREDIENTS
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12 oz savory butter rolls (I used King's Hawaiian)
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1/4 lb deli sliced corned beef
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9 slices Aged Swiss cheese
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1/2 medium yellow onion (sliced thin)
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5 oz cremini mushrooms (sliced thin)
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Salt and black pepper
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2 Tbsp oil for cooking veggies