16 ounces firm tofu, drained well, cut into 1 inch cubes
1 cup finely chopped onion
1 tablespoon grated fresh ginger
1 small jalapeno pepper, seeded and minced
1 teaspoon chili powder
2 cups no-salt-added or low-sodium vegetable broth
1/2 cup no salt or oil added peanut butter
2 tablespoons tomato paste (see note)
1 bunch kale, tough stems and center ribs removed and leaves chopped
1 tablespoon fresh lime juice
4 scallions, thinly sliced