INGREDIENTS
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4 ounces PHILADELPHIA Cream Cheese, softened
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1 package (10 ounce) frozen chopped spinach, thawed, well drained
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1 1/4 cups KRAFT Shredded Low-Moisture Part-Skim Mozzarella Cheese, divided
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6 tablespoons KRAFT Grated Parmesan Cheese, divided
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6 small boneless skinless chicken breast halves, pounded to 1/4-inch thickness
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1 egg
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10 RITZ Crackers, crushed
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1 1/2 cups spaghetti sauce, heated