Cook rice according to package directions; cover and set aside.
Meanwhile, in a 5- to 6-qt saucepan or stockpot, heat oil on medium heat. Add onions and sauté, stirring occasionally, until tender, 5 to 7 minutes. Add garlic, jalapeños, curry powder and ginger and sauté for 1 more minute.
Stir in the broth, tomatoes and peanut butter. Add potatoes and chard and increase heat to medium-high. Bring to a boil, then reduce heat to a simmer and cook until potatoes and chard are tender, uncovered, 12 to 14 minutes. Season with salt.
Divide rice among serving bowls. Top with stew and cilantro.