Possible Clues:

• Protein-rich pulses
• Soup beans
• A fast time is about fifty if they're seedy
• Common Indian cooking ingredients
• Main ingredient of dal
• Legumes in soups
• Staple legumes, or parsed differently, what 16- and 24-Across did for 51- and 63-Across
• Plant-based food cooking almost silently
• McCluskey reportedly ploughs legumes
• High-protein dried pulses