INGREDIENTS
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Nonstick cooking spray
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2 tablespoons vegetable oil or olive oil
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2 large onions, finely chopped (2 cups)
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1 pound ground beef
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2 15-ounce cans Boston-style baked beans
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2 medium tomatoes, finely chopped (1 cup)
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1/4 cup packed light brown sugar
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1 tablespoon Dijon mustard
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1 1/4 teaspoons salt
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1/2 teaspoon freshly ground black pepper