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2.2 lb (1 k) lean ground beef |
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1 cup white fresh bread, diced ( 2 slices of white bread, approximately) |
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2 ½ cups of cooked broccolis or spinach, chopped |
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1 lb 2 oz (500 g) chopped Provolone cheese or similar |
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5 ½ oz (150 g) frankfurters, sliced |
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1 egg yolk, slightly mixed |