Preheat oven to 375 degrees.
Lightly grease a 9x5 loaf pan.
In a large bowl, mix together flour, sugar, baking powder, salt and cheese.
In a second bowl, beat together egg, milk and oil.
Stir the flour/cheese mixture into the egg/oil mixture, stirring until moistened.
Pour batter into loaf pan.
Bake about 35 minutes, until a toothpick inserted into the center of the loaf comes out clean.
For a variation, substitute some parmesan cheese for the cheddar cheese.