Scrub sweet potatoes; pierce several times with a fork. Place on a microwave-safe plate. Microwave, uncovered, on high 6-8 minutes or until tender, turning once., Meanwhile, in a large skillet, heat oil over medium-high heat. Add pepper and green onions; cook and stir 3-4 minutes or until tender. Stir in beans, salsa, corn, lime juice, peanut butter, cumin and garlic salt; heat through. Stir in cilantro., With a sharp knife, cut an "X" in each sweet potato. Fluff pulp with a fork. Spoon bean mixture over potatoes. If desired, sprinkle with additional cilantro.