- Combine pasta and water in 6-qt. Instant Pot® inner pot. Secure lid. Pressure Cook on High for 3 min.
- Press Cancel; natural release pressure for 2 min., then quick release any remaining pressure.
- Carefully open lid once all pressure is released. Stir in sauce, cheeses and pepper until combined. Serve sprinkled with toasted bread crumbs.
Substitute other short pastas such as macaroni or rotini for the mezzi rigatoni.
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