Heat the avocado oil in a non-stick skillet over medium heat. Cook the bell peppers, onion, and tomatoes in the oil until softened. Transfer the vegetables to a plate and set aside.
Crumble the tofu into the hot pan and add the turmeric, garlic powder, salt, and pepper. Stir the spices into the tofu, making sure everything is well combined.
Cook the tofu crumbles, stirring occasionally, until they are slightly browned, about 5-7 minutes.
Add the cooked vegetables and the spinach to the pan and stir the tofu mixture until the spinach is wilted, about 3-5 minutes. Taste and adjust the seasonings, adding more salt and pepper, turmeric, or garlic powder as needed.