Preheat oven to 350°F (175°C). Line or grease a loaf pan like your life depends on it.
In a small bowl, mix chia seeds with plant milk. Let it sit 5 minutes—it becomes your vegan egg.
In a large bowl, mash bananas. Add oil, maple syrup, vanilla, and chia mix. Stir like you mean it.
In another bowl, whisk together flour, baking soda, cinnamon, and salt. Add to the wet mix slowly.
Stir just until combined. Fold in chopped walnuts with gentle grace—or rage, whatever works.
Pour into your pan. Level the top. Sprinkle more nuts or chia if you’re feeling Pinteresty.
Bake 50–55 minutes. Toothpick should come out clean or at least not covered in goo.
Cool in pan 10 minutes, then transfer to a rack. Or don’t and eat it standing over the sink.