Creamy Vegan Miso Soup

Almond butter lends this single-serving soup its creamy texture, nutty taste, and a boost of protein.

1 teaspoon sesame oil
1 carrot, sliced into coins
2 tablespoons chopped red onion
4 ounces extra-firm tofu, cubed
1½ cups water
1 tablespoon yellow miso
1 tablespoon creamy almond butter
1 scallion, chopped, for garnish