In 12-inch nonstick skillet, melt Becel® Buttery Taste margarine over medium-high heat and cook onion, stirring occasionally, 4 minutes or until tender.
Add garlic and cook 30 seconds. Stir in green beans and cook, stirring occasionally, 1 minute.
Add broth and lemon juice, then bring to a boil over high heat. Reduce heat to medium and simmer 6 minutes or until green beans are crisp-tender. Season, if desired, with salt and black pepper.