INGREDIENTS
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8 strips bacon, cooked and broken into pieces
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3 cups sliced onion
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4 teaspoons olive oil
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1/4 teaspoon salt
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1/4 teaspoon coarsely ground pepper
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1 pound lean ground beef
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2 Tablespoons Worcestershire sauce
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1/2 teaspoon coarse ground pepper
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2 cloves garlic, minced
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1 cup shredded cheddar cheese, divided
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4 hamburger buns