 One of the most practical solutions has been TFP—textured fungal protein—grown in huge underground vats (no light is needed) by the Yamagata method.TFP is a nutritionally balanced source of protein and complex carbohydrates, enriched with essential amino acids, and can be shaped, textured, colored, and flavored into reasonable facsimiles of tomatoes, steaks, potatoes, linguine, broccoli, etc.