The fruit known as a substitute for an avocado is the banana. This substitute is often used in vegan recipes, particularly in smoothies or baked goods, for its creamy texture and natural sweetness. Some individuals utilize bananas as a base to create avocado-like spreads or dips, aiming for a healthier alternative with a similar consistency. While bananas and avocados differ in flavor and nutritional profile, they can fill similar roles in various dishes.