Cook bacon in a large skillet, uncovered, over medium heat for 8 to 10 minutes or till just crisp, turning occasionally. Remove bacon, reserving drippings; drain bacon on paper towels.
Drain all but 2 tablespoons of the bacon drippings from the skillet. Add green beans, carrots, margarine or butter, and garlic. Stir-fry over medium-high heat about 5 minutes or till vegetables are crisp-tender.
Crumble bacon. Stir pepper into vegetable mixture. Remove from heat. Transfer to a serving bowl. Top with crumbled bacon.