McDonald's offers several keto-friendly breakfast, lunch, and dinner options. You can order a Sausage McMuffin or a Bacon, Egg & Cheese Biscuit without the biscuit. Lunch and dinner options include salads and bunless burgers topped with cheese, lettuce, and tomato. While traditional McDonald's desserts may not be keto-friendly, you can still satisfy your sweet tooth with creative low-carb alternatives.