Pressed into orzo-like bits, as a potato

• Like some potatoes
• In small pieces, as potatoes
• Harvested water oats
• Prepared hashbrowns, say
• Finely chopped
• Pressed through a sieve
• Put through a colander
• Made grain-sized
• Pushed through a sieve

Wiktionary Word definitions in Wiktionary
vb. (en-past of: rice)