In a large cooking pot over medium heat warm oil and sauté onion, garlic, and white stems of chard until wilted, about 5 minutes.
Add chopped greens and continue to sauté.
Add beans, raisins, sweet potatoes, tomatoes, salt, and pepper.
Continue to sauté for 3 to 5 minutes.
Make a well in the center of the mixture and add rice to the well—Pat rice down with a wooden spoon until moist. Cover and cook until rice is complete, about 25 minutes.
Check the mixture occasionally and add water 2 tablespoons at a time if the rice is dry and starting to stick during cooking.
Add salt, pepper, and Tabasco sauce to taste and serve.
