GRILLED VEGETABLES RAVIOLI OCTAGON COOKEDPreparation instruction: Drop frozen ravioli into salted boiling water. After water returns to boil, cook for 3-4 minutes. Product internal temperature must be 160Â°F or higher. 2. Mix preheated sauce with frozen precooked ravioli, put in a steam pan, cover with additional sauce and place in 375Â°F preheated oven for 15-20 minutes. 3. Ravioli may also be prepared in a steamer or in microwave oven.