INGREDIENTS
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1/2 pound ground beef
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1 medium-sized onion, chopped
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2 (8-ounce) cans tomato sauce
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1 cup water
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1/4 teaspoon chili powder
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1 (9-ounce) package tortilla chips, coarsely crushed
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1 cup sour cream
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1 cup (4 ounces) shredded Monterey Jack cheese