Soak washed beans overnight; or pour boiling water over them, cover and allow to soak 1 hour.
Drain, place soaked limas in cooker, add onion, garlic, and parsley.
Mix tomato puree, water and seasonings together and pour into cooker; mix well.
Top with lamb shanks browned well in melted fat.
Pressure cook at 15 lbs.pressure for 45 minutes.
Reduce pressure immediately.