Marbled Chocolate Banana Muffins

"These marbled chocolate banana muffins, made with minimal sugar and plain Greek yogurt to keep them a bit healthier, make the perfect breakfast or snack! These muffins are super easy to make, and mix up easily in a few minutes. They're tasty, pretty healthy, and can be enjoyed for breakfast, as a snack, or tucked into a lunchbox. They also freeze well to have grab and go snacks on hand at all times. Full of chocolate and banana flavour, everyone will love these!"