This vegan egg salad sandwich is a great option for a bagged lunch or anytime you need food in a flash. The key to its eggy flavor is black salt, also known as kala namak. If you like, add optional ingredients to the filling like shredded carrot, sliced avocado, or a sprinkling of pepitas (shelled pumpkin seeds).
Crumble the tofu into a mixing bowl with your fingers. Add the sliced green or minced onion, vegan mayonnaise, stoneground mustard, kala namak, black pepper, and turmeric (if using).
Combine all of the filling ingredients with a fork, mashing some of the tofu. You want it to still have some texture. So don't make a puree, but smooth it enough that it won't fall out of the sandwich.
Taste for any adjustments and add more mayo, stoneground mustard, black salt, or pepper that you might like.
Slather mayonnaise on two slices of sandwich bread, and fill with the tofu mixture.
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Notes
Tofu notes: Vacuum-packed tofu is ideal here, because you don't have to press out the water before using it. Look for vacuum-packed tofu in the refrigerated section of Trader Joe's or many grocery stores. If you only have water-packed tofu, press it first. Water-packed tofu usually comes in 14-ounce packages, but that includes water weight. In that case, you'll need two packages of drained and pressed tofu for this sandwich.Kala namak: Also known as black salt, this sulfurous salt is essential to this dish. Look for it at Indian grocery stores or online. The eggy flavor fades in the dish over time. So if you're eating leftovers, add another sprinkle of kala namak just before serving.Variations: Instead of serving this eggless egg salad on a sandwich, roll it into a tortilla, spoon it onto a toasted bagel, or pile it on crackers.