Preheat your oven to 350°F (175°C).

Line a baking sheet with parchment paper or lightly grease it.

In a large mixing bowl, combine the baking mix, ground sausage, shredded cheddar cheese, and black pepper.

Using your hands or a sturdy spoon, mix everything together until well combined.

It may take some time for the ingredients to fully incorporate, but you want to ensure the sausage and cheese are evenly distributed.

Roll the sausage mixture into 1-inch balls and place them on the prepared baking sheet.

Make sure to leave a little space between each ball so they cook evenly.

Place in the oven and cook for 20 to 25 minutes, or until the sausage balls are beautifully browned and cooked through, ensuring a deliciously crisp exterior.

You may want to rotate the baking sheet halfway through to ensure even cooking.

After baking, take them out of the oven and let them rest for a few moments to cool down before presenting them for serving.

While the sausage balls are baking, whisk together the mayonnaise and mustard in a small bowl.

Taste and adjust the mustard to your preference.

Serve the sausage balls warm, with the mustard-mayo dip on the side for dipping.