The interviewer wants to hear that you are genuinely interested in working at Aldi. Of all the places you could have applied for a job, why did you select Aldi? Perhaps it was Aldi's great reputation or the excellent customer service you previously received. Focus on positive things you have heard or experienced. Just tell the interviewer why you are interested!
"The primary reasons your company stands out to me include your focus on employee development and continued education. You have a strong reputation for nurturing the human resources that you have. I would be so grateful to work here."