1. Cook bacon in a large skillet over medium-high heat until almost crisp. Add onion, bell pepper, and celery; cook, stirring often, 8 minutes or until vegetables are tender and bacon is crisp.
2. Stir in flour; cook, stirring constantly, 1 minute. Stir in Low Country Seasoning, Worcestershire sauce, and 2 teaspoons thyme. Stir in shrimp. Cook, stirring constantly, 3 minutes. Stir in beef broth. Cook, stirring often, 4 minutes or just until shrimp turn pink and sauce is thickened. Serve over grits. Garnish, if desired.