2 small sweet potatoes (about 8 oz. each) 1 tablespoon canola oil 8 ounces 95%-lean ground beef 2 scallions, sliced, green and white parts separated 2 tablespoons tomato paste 1-2 canned chipotle peppers in adobo, chopped 1 tablespoon paprika ¼ teaspoon salt 1 cup canned low-sodium kidney beans, rinsed ½ cup water ¼ cup shredded […]