"Get this all-star, easy-to-follow Big-Batch Healthy Beef, Mushroom and Spinach Calzones recipe from Food Network Kitchen..."
INGREDIENTS
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3 tablespoons extra-virgin olive oil
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1 pound lean ground beef
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Kosher salt
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1/4 teaspoon crushed red pepper flakes
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8 ounces cremini mushrooms, sliced (about 1 cup)
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4 cloves garlic, finely minced
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6 cups packed baby spinach (about 5 ounces)
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One 28-ounce can crushed tomatoes
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3 pounds whole-wheat or regular pizza dough
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Cooking spray
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Whole wheat or all-purpose flour, for the work surface
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2 1/4 cups shredded part-skim mozzarella
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1 large egg, beaten