<http://schema.org/recipeInstructions>
" Preheat broiler. In large bowl, with fork, mix spinach, eggs, egg whites, green onions, feta, 1/2 cup mozzarella, and 1/4 teaspoon salt until well blended. In broiler-safe nonstick 10-inch skillet, heat oil over medium heat . Pour egg mixture into skillet; arrange tomatoes on top, pushing some down. Cover skillet and cook frittata 5 to 6 minutes or until egg mixture is just set around edge. Place skillet in broiler 5 to 6 inches from source of heat and broil frittata 4 to 5 minutes or until just set in center. Sprinkle with remaining 1/4 cup mozzarella; broil about 1 minute longer or until cheese melts. To serve, loosen frittata from skillet. Leave frittata in skillet or slide onto warm platter; cut into wedges."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.goodhousekeeping.com/food-recipes/a5296/florentine-frittata-581/>