INGREDIENTS
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1 canister refrigerated pizza crust
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2 tablespoons olive oil
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1/2 cup chopped onion
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1 lb. 93/7 super lean ground beef
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3 tablespoons taco seasoning
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1/2 cup water
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1 cup fiesta blend shredded cheese, divided
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1 tomato, diced, plus additional for top, if desired
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2 tablespoons unsalted butter, melted
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2 cups chopped Romaine lettuce
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Sour cream and taco sauce for serving, if desired