Preheat the oven to 350°F and line a rimmed baking sheet with parchment paper.
In a large bowl, combine the sausage, baking mix, and grated cheese. Use your hands to mix until mostly combined.
If you have some dry baking mix that won’t incorporate after a minute or so of mixing, add in the milk or water and mix again.
Form the mixture into 18 large balls (about 2 ounces each, or about the size of a lacrosse or billiard ball), placing them about an inch apart on the prepared baking sheet.
Bake until browned on the bottom and cooked through, 24 to 27 minutes.
Enjoy the sausage balls warm out of the oven or cool and store in an airtight container in the refrigerator until ready to eat.
Breakfast sausage balls can be reheated in a 350°F air fryer for 3 to 4 minutes or microwaved until warm.
Sausage balls will keep for up to 1 week in the fridge.
