Preheat the oven to 375°F (190°C). Grease or line a 12-cup muffin pan.
In a mixing bowl, whisk together flour, baking powder, salt, and black pepper.
Stir in the shredded cheddar cheese until coated with flour.
In a separate bowl, whisk together milk, eggs, melted butter, honey, and Dijon mustard until smooth.
Pour the wet ingredients into the dry ingredients and mix just until combined. Do not overmix.
Fold in the green onions.
Divide the batter evenly among the muffin cups.
Bake for 18–20 minutes, or until the tops are golden and a toothpick inserted in the center comes out clean.
Cool in the pan for 5 minutes, then transfer to a cooling rack to cool slightly before serving.