HEAT oil in Dutch oven or small stockpot. Add potatoes, carrots, peppers and half each of the onions and garlic; cook 5 min., stirring constantly.
MEANWHILE, blend tomatoes, broth, chile, oregano, and remaining onions and garlic in blender until smooth.
ADD vegetable puree to potato mixture; stir. Bring to boil; cover. Simmer on medium-low heat 15 min., stirring occasionally. Add wieners; cook, covered, 5 min. or until heated through. Serve with tortillas.