"Swap in arugula if you like -- simply cook the crust a minute or two more and the topped pizza a minute or two less...."
INGREDIENTS
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2 tablespoons olive oil
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1 pound refrigerated whole-wheat pizza dough
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3 ounces baby spinach (4 lightly packed cups)
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1/2 cup crumbled blue cheese
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1/4 cup coarsely chopped walnuts
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1 tablespoon grated Parmesan
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Pepper