"Here's what you need: sirloin steak, kosher salt, fresh ground black pepper, vegetable oil, unsalted butter, large yellow onion, button mushroom, sourdough bread, cheddar cheese, fresh baby spinach, bacon, provolone cheese..."
INGREDIENTS
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24 oz sirloin steak, or top loin steak
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kosher salt
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fresh ground black pepper
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¼ cup vegetable oil, plus 2 tablespoons, divided
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2 tablespoons unsalted butter
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½ large yellow onion, chopped
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2 cups button mushroom, chopped
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1 sourdough bread, large
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6 slices cheddar cheese
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1 cup fresh baby spinach
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6 strips bacon, cooked
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6 slices provolone cheese, or swiss cheese