Press one block of tofu for 15 minutes, then mash.

Meanwhile, heat a skillet with olive oil over medium heat and cook red onion, tomato, and any other veggies. Let cook until softened, about 5-10 minutes.

Mix in tofu and break apart. Stir in remaining ingredients and optional add-ins. Let cook while stirring occasionally for about another 5 minutes.

Enjoy on its own, on toast, or in a tortilla!