Grease 12 muffin tins and preheat oven to 375.
In a large mixing bowl, combine the flour, baking powder, sugar and salt. Add the oil and 2 eggs, then pour in the evaporated milk and 1/4 cup water. Whisk together.
Stir in the cooked sausage and shredded cheese.
Fill the greased muffin tins 2/3 full with batter.
Bake muffins in the preheated oven for18-20 minutes, or until cooked through.
Let cool on cooling rack before serving. Eat up or freeze for another morning!