Italian Chicken And Spinach Roll
["1 pkg. (9 x 13-inch) phyllo pastry dough", "6 whole boneless chicken breasts, halved", "6 oz. shredded Swiss cheese", "3/4 c. Ricotta cheese", "1/2 large onion, finely chopped", "1 large clove garlic, peeled and crushed", "1 heaping Tbsp. green bottled peppercorns, drained", "1 tsp. salt", "1 pkg. frozen chopped spinach, thawed and drained", "warmed spaghetti sauce", "4 sticks unsalted butter"]
["Pound out chicken breasts until about 1/8-inch thick.", "Combine the remaining ingredients together.", "Place about 1/3 cup of the mixture on chicken and spread out.", "Roll chicken around spinach."]
["phyllo pastry", "chicken breasts", "Swiss cheese", "Ricotta cheese", "onion", "clove garlic", "green", "salt", "spinach", "sauce", "butter"]