Swap traditional bread with tofu for your avocado toast. The secret is using superfirm tofu: Trader Joe's Organic High Protein Super Firm is my absolute favourite. Cut it into thin slices, sauté it in a pan, and it becomes firm and slightly crunchy, just like toast made from bread. Each slice of plain tofu is 117 calories, 2.5 grams of carbs, and offers 12.5 grams of protein.