* 1/2 cup chopped onion * 1 pound lean ground beef * 1 tablespoon vegetable oil * 8 ounces elbow macaroni * 1 can (16 ounces) kidney beans, undrained * 1 large can (16 ounces) tomato sauce * 1 cup water * 1 teaspoon chili powder * 1 teaspoon salt * 1 cup shredded Cheddar cheese
In a large skillet, brown onion with ground beef. Add macaroni, kidney beans, tomato sauce, water, chili powder, and salt. Cover and simmer for 15 minutes. Add 1 cup shredded cheddar cheese; cover and continue to heat until cheese is melted.