In a food processor, purée spinach, tofu, green onions and garlic until smooth, about 3 minutes, scraping the sides and bottom of the processor a few times. Add mayonnaise and mix thoroughly. Season with salt and pepper.
Serve as a spread or in a sandwich.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.